GE Refrig Monogram Btm Mount Inverter Comp ZIC 31 9122
2013-04-09
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GE Consumer & Industrial TECHNICAL SERVICE GUIDE Monogram Bottom Mount Inverter Compressor Refrigerators with Electronic Controls MODEL SERIES: ZIC360NR ZICS360NR PUB # 31-9122 6/04 IMPORTANT SAFETY NOTICE The information in this service guide is intended for use by individuals possessing adequate backgrounds of electrical, electronic, and mechanical experience. Any attempt to repair a major appliance may result in personal injury and property damage. The manufacturer or seller cannot be responsible for the interpretation of this information, nor can it assume any liability in connection with its use. WARNING To avoid personal injury, disconnect power before servicing this product. If electrical power is required for diagnosis or test purposes, disconnect the power immediately after performing the necessary checks. RECONNECT ALL GROUNDING DEVICES If grounding wires, screws, straps, clips, nuts, or washers used to complete a path to ground are removed for service, they must be returned to their original position and properly fastened. GE Consumer & Industrial Technical Service Guide Copyright © 2004 All rights reserved. This service guide may not be reproduced in whole or in part in any form without written permission from the General Electric Company. –2– TABLE OF CONTENTS TECHNICAL DATA .................................................................................................................... 5 MODEL NOMENCLATURE ........................................................................................................ 6 MINI-MANUAL .......................................................................................................................... 6 RATING PLATE........................................................................................................................ 6 COMPONENT AND CONNECTOR LOCATOR VIEWS .............................................................. 7 CABINET ................................................................................................................................... 8 Cabinet ............................................................................................................................... 8 Machine Compartment ..................................................................................................... 8 Door Closure Mechanism .................................................................................................. 9 Fresh Food Door and Hinges .......................................................................................... 10 Door .................................................................................................................................. 10 Freezer Drawer ............................................................................................................... 10 Door and Drawer Gaskets .............................................................................................. 10 Rollers and Leveling ........................................................................................................ 11 ICEMAKER ...............................................................................................................................11 Water Valve and Water Line ...........................................................................................11 AIRFLOW ............................................................................................................................... 13 Damper ............................................................................................................................ 13 Evaporator Fan ................................................................................................................ 14 Condenser Fan ................................................................................................................ 17 Drain Pan Fan ................................................................................................................. 18 DEFROST SYSTEM ................................................................................................................ 18 Adaptive Defrost .............................................................................................................. 18 Defrost Heater .................................................................................................................. 20 Evaporator Thermistor .................................................................................................... 20 Defrost Overtemperature Thermostat ............................................................................ 20 CONTROL SYSTEM ............................................................................................................... 21 Touch Panel and Temperature Control Board .............................................................. 21 Main Control Board ......................................................................................................... 22 Main Control Board Locator Tables ............................................................................... 26 Thermistors ...................................................................................................................... 28 ELECTRICAL SYSTEM ........................................................................................................... 29 Door and Drawer Switches ............................................................................................. 29 Master Light Switch ........................................................................................................ 29 Temperature Overload Device (TOD) ............................................................................. 29 Schematic ........................................................................................................................ 30 REFRIGERATION SYSTEM ............................................................................................... 31 Inverter Compressor ........................................................................................................ 33 –3– Table of Contents (cont.) Inverter ............................................................................................................................. Condenser ........................................................................................................................ Condenser Loop .............................................................................................................. Drier .................................................................................................................................. Evaporator ....................................................................................................................... Auxiliary Line .................................................................................................................. Refrigerant Charge ......................................................................................................... 35 37 37 38 38 39 39 DIAGNOSTIC MODE ............................................................................................................... 40 ILLUSTRATED PARTS ........................................................................................................... 41 WARRANTY ............................................................................................................................ 51 –4– TECHNICAL DATA DISCONNECT POWER CORD BEFORE SERVICING IMPORTANT - RECONNECT ALL GROUNDING DEVICES All parts of this appliance capable of conducting electrical current are grounded. If grounding wires, screws, straps, clips, nuts or washers used to complete a path to ground are removed for service, they must be returned to their original position and properly fastened. IMPORTANT SAFETY NOTICE This information is intended for use by individuals possessing adequate backgrounds of electrical, electronic and mechanical experience. Any attempt to repair a major appliance may result in personal injury and property damage. The manufacturer or seller cannot be responsible for the interpretation of this information, nor can it assume any liability in connection with its use. CAUTION To avoid personal injury when servicing the condensing unit, stand on a ladder which will give enough support to allow removal of the top panel and safely allow access to service the unit. REFRIGERATION SYSTEM Compressor ................................................. 833 BTU/hr Minimum Compressor Capacity Vacuum, ..................................................... 22 inches Minimum Equalized Pressure @ 70°F ..................................................... 60/65 PSIG @ 90°F ..................................................... 79/80 PSIG R134a Refrig. Chg. ........................................... 13.00 oz ELECTRICAL SPECIFICATIONS Max Defrost Control W/No Door Openings ..................... 60 hrs @ 40 min Evap Defrost Thermo Disc ............................... 65-45°F Light Thermostat. .......................................... 190-130°F Electrical Rating: 115V AC 60 Hz ..................... 9.0 amp Maximum Current Leakage ............................. 0.75 mA Maximum Ground Path Resistance .......... 0.14 Ohms Energy Consumption .......................... 39 KWhr/month NO LOAD PERFORMANCE CONTROL POSITION 37-0°F and AMBIENT TEMPERATURE OF 70°F 90°F Fresh Food, °F .............................. 35-39 ............... 35-39 Frozen Food, °F .......................... (-4) +4 ............. (-4) +4 Percent Running Time ...................... 60 .................... 80 REFRIGERATION DIAGNOSIS To access the low pressure side of the system, install a WJ56X61 valve only on the process tube extending from the compressor case. REPLACEMENT PARTS Temperature Control...........................WR55X10098 Lamp Overtemperature Thermostat..WR50X10003 Defrost Heater Overtemperature Thermostat.............WR50X10030 Defrost Heater....................................WR51X10015 Condenser Fan Motor.........................WR60X10053 Condenser Fan Blade........................WR60X10049 Evaporator Fan Motor.........................WR60X10043 Evaporator Fan Blade.........................WR60X10050 Main Board..........................................WR55X10433 Thermistors (2-FF, 1-FZ, 1-EV)..........WR55X10028 Drain Pan Fan Motor...........................WR60X10106 Damper...............................................WR09X10065 Evaporator...........................................WR85X10007 Compressor........................................WR87X10064 Condenser..........................................WR84X10030 Dryer.....................................................WR86X0096 Inverter................................................WR55X10155 Sealed System INVERTER* TO CABINET WIRING BLACK GREEN/YELLOW RED WHITE CONDENSER GREEN/YELLOW GROUND ORANGE COMMUNICATION SIGNAL COMPRESSOR BROWN BLUE BLACK PROCESS TUBE DRYER INVERTER COMPRESSOR GROUND SUCTION TUBE EVAPORATOR CONDENSER LOOP *Approximate location of inverter –5– CAPILLARY MODEL NOMENCLATURE Z I C S 360 N R A LH Brand/Product Z - Monogram Door Type F - Flat R H- Right Door Swing LH - Left Door Swing Style I - Built In Engineering A - Initial Design B - 1st Revision C - 2nd Revision D - 3rd Revision Etc. Configuration C - Bottom Mount Color S - Stainless Blank - Trim Model Model Year R - 2004 Energy Size 360 - 36 Inches Wide Icemaker/Exterior N - Non Dispenser MINI-MANUAL The mini-manual is located behind the grille panel at the top of the unit. It is taped to the left side wall of the machine compartment. When done, return the mini-manual to its original location for future use. Serial Number The first two numbers of the serial number identify the month and year of manufacture. Example: AG123456S = January, 2004 RATING PLATE The rating plate, located inside the fresh food compartment under the right-hand storage drawer, contains the model and serial numbers. Additionally, the rating plate specifies the minimum installation clearances, electrical voltage, frequency, maximum amperage rating, refrigerant charge, and type. A - JAN D - FEB F - MAR G - APR H - MAY L - JUN M - JUL R - AUG S - SEP T - OCT V - NOV Z - DEC –6– 2005 - H 2004 - G 2003 - F 2002 - D 2001 - A 2000 - Z 1999 - V 1998 - T 1997 - S 1996 - R 1995 - M 1994 - L The letter designating the year repeats every 12 years. Example: T - 1974 T - 1986 T - 1998 COMPONENT AND CONNECTOR LOCATOR VIEWS Door Switch Temperature Touch Panel Damper Cold Air Outlets Fresh Food Thermistors Air Duct P0003329 Fresh Food Compartment Freezer Thermistor Icemaker Freezer Drawer Switch P0003376 Freezer Compartment –7– CABINET Cabinet The outer case is made of galvanized steel. The fresh food and freezer liners are painted metal with a smooth finish. Individual fresh food and freezer compartments provide separation and enhanced individual control between the compartments. The metal liner provides a thermal break between the interior of the refrigerator and freezer compartments and reduces the transfer of heat from the room into the fresh food and freezer compartments. The liner is not removable or replaceable. Machine Compartment The machine compartment is located on the top of the unit and has a movable chassis that can be extended from the front of the unit to provide access to the refrigeration system and components. Caution: Avoid kinking the refrigeration lines when sliding the chassis out and back in. Raise Grille Panel to Stop Position Remove 2 Screws Each Side to To extend the chassis: 1. Raise the grille panel to stop position. Bolts Track Bolt 2. Remove the wire guard and door cover. 3. Remove the door switch. 4. Disconnect the door closure mechanism spring from the pin and remove the pin by turning it counterclockwise. 5. Remove the 2 screws securing the inverter. Right Side of Machine Compartment 6. Remove the door spring. 7. Remove the 2 front (7/16-in.) bolts from tray. Track Bolt Bolt 8. Loosen the 2 rear (7/16-in.) tray bolts. 9. Pull the chassis forward until it reaches the stops in the tracks, working the refrigeration tubing as you pull the chassis out. Note. When sliding the chassis back into position, be certain the lines and wiring have not fallen behind the chassis. Left Side of Machine Compartment –8– Screws Door Closure Mechanism The door closure mechanism uses a spring to provide positive door closure from 30 degrees. The door closure mechanism actuator arm has a spring attached to the rear and is supported by guide rollers on either side of the base channel. The roller circumferences and the actuator arm detents are matched for smooth operation. The arm is attached to the door with an Allen head shoulder bolt. Shown with Inverter Removed for Clarity Spring Bolts The closure mechanism allows easy opening to approximately 90 degrees, where the arm has a detent to permit the door to remain open at 90 degrees with minimal tension. Once the door is opened beyond 90 degrees, the closure mechanism pulls the door open until the closure arm engages the door stop at approximately 130 degrees. The reverse action occurs when the door is closed. Actuator Arm Allen Head Bolt Note: The door closure mechanism and the top door hinge are held by the same bolts. Take the necessary precautions to secure the fresh food door when the door closure mechanism is being removed. • The actuator arm is spring loaded with moderate spring tension. To remove the door closure mechanism 1. Remove the 3/16-in. Allen head bolt and spacer from the door and actuator arm. 2. Disconnect the spring from the pin on the top of the cabinet and pull the actuator arm from the closure mechanism. 3. Remove 4 (3/8-in.) bolts and the door closure mechanism. –9– Fresh Food Door and Hinges WARNING: Use the appropriate safety equipment and lifting techniques. Center Hinge Caution: Use wood or a heavy plastic sheet to protect the floor where the door will be placed. Note: Unit must be removed from its installation to remove center hinge. Door The door is of one-piece construction with foam insulation. One-piece construction provides superior thermal performance and reduces air infiltration. Screws The inner door panel and outer door panel cannot be separated and must be replaced as an assembly. 1. Remove all food and bins from the inner door liner. Door 2. Tape door to cabinet. Screws 3. Remove the door closure mechanism (see previous procedure). 4. Remove the upper hinge. 5. Remove tape and lift the door off center hinge. 6. Remove 4 T-27 Torx screws and center hinge. Freezer Drawer Slide/Support Assembly 1. Loosen 4 screws connecting each side of the freezer door to the slide/support assemblies. 2. Lift door up and out to remove. Left Side of Freezer Door Door and Drawer Gaskets The fresh food door and freezer drawer have magnetic gaskets that create a positive seal to the front of the steel cabinet. The magnetic door gaskets are secured to the fresh food door and freezer drawer by a barbed edge that locks into a retainer channel. 1. Starting at any corner, pull the old gasket out of the retainer channel. 2. Soak the new gasket in warm water to make it pliable. 3. Push the barbed edge of the gasket into the retainer channel. – 10 – P0003336 Rollers and Leveling This model has 4-point leveling provided by adjustable rollers on the rear and leveling legs on the front. It also has 2 nonadjustable front rollers that are used only for unit positioning. To level the unit: 1. Turn the 7/16-in. hex nut located above the front rollers to adjust the roller on the rear of the unit. Turn clockwise to raise, counterclockwise to lower. Hex Nut Leveling Leg 2. Turn the front legs with a 1-1/4 in. open end wrench to adjust the front of the unit. Turn clockwise to raise, counterclockwise to lower. Wheel ICEMAKER Power Switch The icemaker is mounted to the upper left wall of the freezer cabinet. Under normal operating conditions, temperatures, door openings, and food load, the icemaker is capable of producing approximately 100 to 130 cubes in a 24-hour period. Icemaker Note: The freezer door light switch, located on the back wall of the freezer, also serves as an icemaker interlock (or kill) switch. It will open the circuit to the icemaker any time the freezer drawer is open. Green Power Light To service the icemaker, refer to GE Publication 31-9063. Feeler Arm Water Valve and Water Line The water valve is mounted to the side of the water filter bracket in the machine compartment. A plastic water line is routed from under the unit, up the back of the cabinet, into the machine compartment, and to the water valve. Water Valve A low-pressure plastic water line supplies water to the icemaker from the water valve. The plastic water line is routed from the water valve, out the back of the machine compartment, down the back of the cabinet to the fill tube grommet. The icemaker fill tube is also plastic. To Replace the Water Valve Note: Some water may leak from the water supply line and valve when they are disconnected. P0003393 1. Shut off the water supply to the freezer. Water Filter Bracket – 11 – 2. Raise the machine compartment cover panel. 3. Remove 2 Phillips screw attaching the water valve cover. Water Valve 4. Remove 2 Phillips screw attaching the water valve to the filter bracket. 5. Disconnect the wiring harness connector and 2 water lines from the water valve and remove. To Replace the Water Line from the Water Valve to the Fill Tube Grommet Note: Some water may leak from the water supply line and valve when they are disconnected. 1. Shut off the water supply to the freezer. 2. Remove the unit from its installation. P Screw 3. Remove 14 (1/4-in.) screws and the metal access cover. 4. Disconnect the water line at the quick connector by pushing in the white collar on the quick connector while pulling the water line out. Access Cover 5. Loosen the clamp at the fill tube grommet and remove the water line. P0003413 – 12 – AIRFLOW Damper The fresh food compartment receives chilled air via an electronic damper that is positioned at the top rear of the fresh food compartment. The damper is controlled by the main control board and when open, allows the evaporator fan to push chilled air from the evaporator into the fresh food compartment. To remove the damper 1. Remove the light cover. 2. Remove 8 Phillips screws and the light assembly. 3. Disconnect the damper wiring. 4. Remove 2 Phillips screws and the damper. Light Assembly Screws Screws P0003387 Damper Screws P0003380 – 13 – Evaporator Fan The position of the fan blade in relation to the shroud is important. Refer to illustration for specifications. 5/16 +/- .03 Airflow The evaporator fan is the same fan used on previous models; however a significant difference is that the main control board does not require, nor receive, input from the fan feedback/rpm (blue) wire. The fan utilizes a permanent magnet, 4-pole, DC motor that operates at three different speeds: high, medium, and low. The speed of the fan is controlled by the voltage output from the main control board. Voltage output from the control board to the fan is 13.2 VDC; however to regulate the speed of the fan, the main control board uses pulse width modulation (PWM). When operating, voltage is sent in pulses (much like a duty cycle) as opposed to an uninterrupted flow. This pulsing of 13.2 VDC produces effective voltage being received at the motor, which is the equivalent to a reduction in voltage. Fan speed will be selected and maintained by the main control board regulating the length and frequency of the 13.2 VDC pulse. Temperature may cause some fan speed variation. Fan speed may vary +/- 5%, depending on the temperature, with higher temperatures causing slightly higher speeds. 13.2 VDC 12 VDC 0 VDC High Speed (12 VDC measured) 13.2 VDC 9.2 VDC 0 VDC Medium Speed (9.2 VDC measured) 13.2 VDC 8 VDC 0 VDC Low Speed (8 VDC measured) EVAPORATOR FAN SPEEDS – 14 – Neutral FZ Door Switch FF Door Switch Custom Cool Heater Auger Motor Interlock Water Valve Crusher Solenoid Auger Motor 1 J18 J11 J9 J8 K1 K2 CRUSHER K5 DEFROST K4 K7 PAN HEATER CUSTOM COOL K3 WATER J12 Drain Pan Heater Line (L1) Defrost Heater Not Used Not Used AUGER J7 J1 EARTH 2 J6 1 J19 1 J15 +5V Custom Cool Thermistor Custom Cool Damper1 + Custom Cool Damper1 - Custom Cool Fan Fan +12V Fan Common Evaporator Fan Condenser Fan 6 1 8 J5 J2 or J13 Evaporator Fan Tach. 1 Inverter Common Inverter Output J2 9 1 J1 or J14 10 1 J3 or J10 5 1 J4 or J16 EARTH FF1 Thermistor FF2 Thermistor FZ Thermistor Evaporator Thermistor +5V Damper - Blue Damper - White Damper - Red Damper - Yellow Comm. 2-Way Digital Comm. +12V Comm. Common If the fan shorts, it will damage the main control board. If the resistor on the main control board is burnt, you must replace the fan and the board (see photo). Evaporator and Condenser Fan Resistors Ev C ap or at – 15 – or on n de ns es er Fa Fa R is r to n R es is to r FF1 Thermistor FF2 Thermistor FZ Thermistor Evaporator Thermistor +5V 9 1 +5V Custom Cool Thermistor Custom Cool Damper1 + Custom Cool Damper1 - 8 1 J19 Custom Cool Fan Fan +12V Fan Common Evaporator Fan Condenser Fan The blue wire feeds rpm (speed) information to the main control board, allowing the board to maintain consistent fan speeds. Loss of feedback from the blue wire will result in the fan accelerating to maximum speed. Measure the fan rpm using the frequency between the blue and white wires. 6 J5 J2 or J13 Evaporator Fan Tach. 1 Blue Wire (Feedback/RPM) 1 10 J1 or J14 Damper - Blue Damper - White Damper - Red Damper - Yellow 1 J3 or J10 5 Inverter Common Inverter Output J15 Each motor uses an internal electronic controller to operate the motor. Supply voltage from the main control board remains at a constant 12 VDC. 1 Red Wire (Supply) 1 EARTH J2 The white wire is the DC common wire used for testing. During repairs, DC polarity must be observed. Reversing the DC polarity will cause a shorted motor and/or board. J4 or J16 Comm. 2-Way Digital Comm. +12V Comm. Common White Wire (DC Common) K3 WATER • Observe circuit polarity. Some of the low voltage DC connector labeling on this model may differ from other models. The function and diagnostics for these connectors are identical for all models. J4 or J16 J3 or J10 J2 OR J13 J1 or J14 AUGER K2 CRUSHER 1 a. Red to white - power for internal controller. b. Yellow to white - power for fan. FZ Door Switch FF Door Switch Custom Cool Heater Auger Motor Interlock Water Valve Crusher Solenoid Auger Motor Neutral • Verify 2 voltage potentials: – 16 – K1 J18 J7 • DC common is not AC common. • Motors can be run for short periods using a 9-volt battery. Connect the white wire to the negative (-) battery terminal only. Connect the red and yellow wires to the positive (+) battery terminal. K7 PAN HEATER CUSTOM COOL J12 Drain Pan Heater K5 Line (L1) J1 • You cannot test with an ohmmeter. EARTH Note: When testing these motors: Not Used J9 J11 J8 Not Used The yellow wire is the input wire from the main control board. The main control board provides 8 VDC effective voltage for low speed, 9.2 VDC effective voltage for medium speed, and 12 VDC for high speed. The fan will operate in low speed only when the fresh food thermistor is satisfied. Defrost Heater K4 Yellow Wire (Signal) DEFROST 2 J6 High speed - 205 to 215 Hz (3140 RPM) Medium speed - 155 to 165 Hz (2415 RPM) Low speed - 140 to 150 Hz (2160 RPM) To remove the fan 1. Remove the drawer (see procedure). 2. Remove 5 screws securing the rear duct. 3. Disconnect the freezer light and light thermostat wiring and the remove duct. 4. Disconnect the wire connector from the fan motor. 5. Remove 2 screws from the fan motor bracket and remove the evaporator fan motor. Screws Condenser Fan The condenser fan is a permanent-magnet, 4-pole, DC motor that will operate at 3 speeds. Fan speed (low, medium, high) corresponds with compressor speed to minimize pressure variations in the sealed system. The speed of the fan is controlled by the voltage output from the main control board. Voltage output from the control board to the fan is 13.2 VDC; however to regulate the speed of the fan, the main control board uses pulse width modulation (PWM). Inlet air is available through the left front and left rear of the machine compartment. Wiring Harness Connector Condenser Fan Adjustment 1/2" Housing +/- .100 If the fan shorts, it will damage the main control board. If the resistor on the main control board is burnt, you must replace the fan and the board. Fan The condenser fan is mounted with screws to a fan shroud and mounting bracket in back of the condenser. 0.375" Motor To remove the fan 1. Extend the machine compartment chassis (see Machine Compartment). 2. Disconnect the condenser fan wiring at the harness connector. 3. Remove 4 screws and fan assembly. 4. Remove fan blade, 2 screws from the fan mounting bracket, and fan motor. Airflow Air Flow Bracket 0.50" ± 0.05 Note: A magnetic tip screwdriver may be required to install the condenser fan mounting screws. To install lower fan mounting screw: 1. Pull back foam insulation to visually locate screw hole. 2. Locate hole with fingers of left hand. 3. Place screw on the tip of the screwdriver. 4. Use your right hand to maneuver the screwdriver and use your left hand to guide the screw into the hole. GEA01148 Screws Insulation P0003374 – 17 – Drain Pan Fan The Monogram Bottom Mount has an auxiliary evaporation fan located under the unit. The purpose of this fan is to improve the evaporation rate of drain water should extreme conditions occur. Should this fan malfunction, there is no replacement procedure. The absence of this fan will not affect drain water evaporation under normal conditions. A stainless steel hot gas loop routed through the drain pan will provide ample evaporation. To remove the fan DEFROST SYSTEM Adaptive Defrost Adaptive Defrost can be described as a defrost system that adapts to a refrigerator’s surrounding environment and household usage. Unlike conventional defrost systems that use electromechanical timers with a fixed defrost cycle time, Adaptive Defrost utilizes an intelligent, electronic control to determine when the defrost cycle is necessary. In order to accomplish the correct defrost cycle time, the main control board monitors the following refrigerator operations: • Length of time the refrigerator doors were open since the last defrost cycle • Length of time the compressor has run since the last defrost cycle • Amount of time the defrost heaters were on in the last defrost cycle 1. Remove toe kick (2 screws). 2. Slide out and remove drain pan. 3. Disconnect harness from fan motor. 4. Remove fan by unscrewing 2 screws accessible from within the pan housing. Adaptive Defrost is divided into 4 separate cycles. Those operations are: • Cooling Operation • Pre-Chill Operation • Defrost Heater Operation • Dwell Period – 18 – Adaptive Defrost (Cooling Operation) Adaptive Defrost (Defrost Heater Operation) During the cooling operation, the main control board monitors door opening (fresh food door and freezer drawer) and compressor run times. The board counts the time the doors are open. It reduces the length of time between defrosts by 300 seconds (multiplication factor) for each second that each door is open (if both doors are open, it reduces it by twice the amount). The multiplication factor reduces compressor run time. If the doors are not opened, the compressor will run up to 60 hours between defrosts. If the doors are opened frequently and/or for long periods of time, the compressor run time between defrosts will be reduced to as little as 8 hours. After 30 minutes of pre-chill operation, the main control board turns off the compressor, condenser fan, and evaporator fan. Adaptive Defrost (Pre-Chill Operation) When the main control board determines that defrost is necessary, it will force the refrigerator into a continuous cool mode (pre-chill). During prechill, the freezer temperature may be driven below the set point. However, the fresh food temperature will be regulated by the evaporator fan running at low speed. Pre-chill will last for 30 minutes. These models do have an 8-hour defrost hold-off. During defrost operation, the main control board monitors the evaporator temperature using evaporator thermistor inputs. Typically, the evaporator thermistor will sense a temperature of 45°F within 16 minutes. When the thermistor senses 45°F, the main control board will terminate defrost heater operation. Maximum defrost cycle (heater on) time is 35 minutes (main control board time out). The defrost system is protected by a defrost overtemperature thermodisc (bimetal switch). The thermostat opens when the evaporator temperature raises to 60°F and closes when the evaporator temperature lowers to 45°F. Adaptive Defrost (Dwell Period) After defrost heater operation has been terminated by the main control board, a 20-minute dwell period occurs. During this period, the compressor, condenser fan, and evaporator fan remain off. The remaining frost melting from the evaporator will continue to drip and drain so that, prior to the cooling operation, the evaporator will be totally clear of any moisture. The pan heater is on for the entire 20 minute dwell period. Normal Operating Characteristics • The fill tube heater is on when the defrost heaters are on. • Pan heaters are on when the defrost heaters are on and during dwell period (25 minutes plus defrost time). – 19 – Defrost Heater Screws Caution: Use care to avoid scratching the finish on unit walls. The defrost heater is a single-calrod type, radiant heater mounted under the evaporator. To remove the defrost heater: 1. Remove the drawer (see procedure). 2. Remove upper right slide/support assembly by removing 3 Phillips screws. 3. Remove lower right slide/support assembly by removing 3 Torx screws. P0003407 Screws 4. Remove 5 screws, disconnect light and light thermostat wiring, and remove rear duct. Evaporator Thermistor 5. Remove 4 screws and evaporator cover. 6. Disconnect the heater lead wires. 7. Remove the clip securing the heater to the evaporator and remove the heater. Evaporator Thermistor The evaporator thermistor is mounted on the upper left side of the evaporator. The defrost cycle will terminate when the main control board detects 45°F from the evaporator thermistor. The main control board must sense 45°F in less than 40 minutes, or the defrost cycle will time out. Average time to defrost is 20 minutes. Defrost time should Defrost Heater not exceed 40 minutes. Defrost time does not include dwell and post dwell periods. Defrost Overtemperature Thermostat P0003343 Clip Defrost Overtemperature Thermostat The defrost overtemperature thermostat (bimetal switch) is mounted on the evaporator and provides overtemperature protection during defrost. This thermostat will open at 65°F and will close at 45°F. Note: The main control board will not know if the heater does not come on due to a broken heater, open defrost overtemperature thermostat, or open wiring harness. The defrost heater is controlled by maximum time on the main control board or temperature at the evaporator thermistor. P0003343 – 20 – CONTROL SYSTEM Temperature Control Assembly Touch Panel Touch Panel and Temperature Control Board The temperature control assembly is located at the top front of the fresh food compartment and contains the touch panel and temperature control board. P0003340 The temperature control board receives switched DC voltage from the main control board. Input consists of pins 2 to 3. Failure of input results in default to most recent setting. Pin 1 provides digital communication between the temperature control board and the main control board. Failure of communication results in erratic control. Light Assembly Screws To remove the temperature control assembly: 1. Remove the light cover. 2. Remove 8 Phillips screws and the light assembly. Note: Temperature control assembly is mounted on 3 slotted fasteners. Fasteners do not need to be loosened or removed. Screws 3. Carefully cut RTV seal between temperature control assembly and cabinet. 4. Slide the temperature control assembly back to release it from the slotted fasteners and lower the assembly. 5. Disconnect the wiring connector from the temperature control board. 6. Slide the touch panel out of the temperature control assembly. 7. Remove 2 screws and the temperature control board. Note: Use RTV 102 to reseal temperature control assembly when reassembling. – 21 – P0003387 – 22 – FZ Door Switch FF Door Switch Custom Cool Heater Auger Motor Interlock Water Valve Crusher Solenoid Auger Motor Neutral 1 J11 J9 J8 K1 K2 CRUSHER K5 DEFROST K4 K7 PAN HEATER CUSTOM COOL K3 WATER J12 Drain Pan Heater Line (L1) Defrost Heater Not Used Not Used J18 AUGER J7 J1 EARTH 2 J6 1 J19 Some of the low voltage DC connector labeling on this model may differ from other models. The function and diagnostics for these connectors are identical for all models. J4 or J16 Inverter Common Inverter Output J1 or J14 1 J15 +5V Custom Cool Thermistor Custom Cool Damper1 + Custom Cool Damper1 - Custom Cool Fan Fan +12V Fan Common Evaporator Fan Condenser Fan 6 1 8 J5 J2 or J13 Evaporator Fan Tach. 1 J2 OR J13 J3 or J10 J2 9 1 J1 or J14 10 1 J3 or J10 5 1 J4 or J16 EARTH FF1 Thermistor FF2 Thermistor FZ Thermistor Evaporator Thermistor +5V Damper - Blue Damper - White Damper - Red Damper - Yellow Comm. 2-Way Digital Comm. +12V Comm. Common Main Control Board The main control board, located behind a metal cover at the top of the refrigerator in the machine compartment, manages the operation of the refrigerator by calculating response from various inputs. CONTROL B OARD PIN DEFINITIONS CONNECTOR J1 or J14 PIN 1 INPUT OUTPUT FUNCTION VD C Feedback of fresh food thermistor value. Thermistor is NTC, when temperature drops, resistance value increases, causing return voltage reduction. This value is used to cycle fresh food fan (when used), evaporator fan, compressor, and condensor fan. Feedback is filtered to respond to 8 degrees of change per minute. J1 or J14 2 VD C Feedback of second fresh food thermistor value (when used). Thermistor is NTC, when temperature drops, resistance value increased, causing return voltage reduction. This value is used to cycle fresh food fan (when used), evaporator fan, compressor, and condensor fan. Feedback is filtered to respond to 8 degrees of change per minute. J1 or J14 3 VD C Feedback of freezer thermistor value. Thermistor is NTC, when temperature drops, resistance value increases, causing return voltage reduction. This value is used to cycle evaporator fan, compressor, and condensor fan, and will not cycle fresh food fan (when used). Feedback is filtered to respond to 8 degrees of change per minute. VD C Feedback of evaporator thermistor value. Thermistor is NTC, when temperature drops, resistance value increases, causing return voltage reduction. This thermistor value is used to cycle the heater on during defrost when temperature is below defrost value and off when the temperature is above defrost value. This value is also read during power-up to determine if refrigerator goes into pulldown mode or cycle continuation. Feedback is unfiltered, responds immediately. J1 or J14 4 J1 or J14 5 VDC Provides 5 VDC for thermistors and personality pins on J1. CONTROL B OARD PIN DEFINITIONS CONNECTOR PIN INPUT OUTPUT FUNCTION J2 or J13 1 Hz J2 or J13 3 VD C Fan common - .VDC ground J2 or J13 4 VD C Ou t put to evaporator fan for motor operation. Ef fective voltage is determined by PWM. J2 or J13 5 VD C Ou t put to condensor fan for motor operation. Ef f ective voltage is determined by PWM, speed set in EEPROM. J2 or J13 7 VD C Ou t put to Express Chill (QuickChill) fan for motor operation. Ef fective voltage is determined by PWM. J2 or J13 8 VD C Provides 12-VD . C supply voltage to all fans, constant voltage. Feedback from evaporator fan. This feedback frequency is used to control the PWM for fan sp e e d s. CONTROL B OARD PIN DEFINITIONS CONNECTOR PIN INPUT OUTPUT FUNCTION J3 or J10 1 VD C Damper stepp. er motor J3 or J10 2 VD C Damper stepp. er motor J3 or J10 3 VD C Damper stepp. er motor J3 or J10 4 VD C Damper stepp. er motor – 23 – CONTROL B OARD PIN DEFINITIONS CONNECTOR PIN INPUT OUTPUT J4 or J16 1 Digital Communication Digital Communication FUNCTION Two-way digital communication between main control board, temperature control (board), dispenser board, and Quick Chill board. J4 or J16 2 VD C 12-VDC sup. ply J4 or J16 3 VD C DC commo.n CONTROL B OARD PIN DEFINITIONS CONNECTOR PIN INPUT OUTPUT FUNCTION J5 1 VD C 12 VDC to Climate Control Drawer damper when Express Chill (QuickChill) is selected. Common - VDC ground when express thaw is selected. J5 2 VD C 12 VDC to Climate Control Drawer damper when Express Thaw is selected. Common - VDC ground when Express Chill (Quick Chill) is selected. J5 5 VD C Provides 5 VDC . for Express Chill (QuickChill) thermistor J5 6 Feedback of Express Chill (QuickChill) thermistor. Thermistor is NTC, when temperature drops, resistance value increases, causing a reduction in return voltage. VD C CONTROL B OARD PIN DEFINITIONS CONNECTOR PIN INPUT OUTPUT J7 1 VAC Switched L1 vo.ltage to the auger motor - 120 VAC J7 2 VAC Switched L1 vo.ltage to the crusher solenoid - 120 VAC J7 3 VAC Switched L1 vo.ltage to the water valve - 120 VAC J7 4 J7 5 J7 6 VAC Receives L1 input from fresh food door switch when switch closes (door open). This input is used for evaporator fan control, liner protection mode calculations, door alarm calculat ions, and adaptive defrost calculations. J7 7 VAC Receives L1 input from freezer door switch when switch closes (door open). This input is used for evaporator fan control, liner protection mode calculations, adaptive defrost calculations, door alarm calculations, and some door interlock functions. Switch must be closed in door closed position (switch depressed) for dispenser light and duct door magnet to energize. J7 9 VAC AC. neutral in VAC FUNCTION Receives L1 input from freezer door switch when freezer door is closed. VAC Switched L1 voltage to the Express Chill (QuickChill) heater - 120 VAC. Some of the low voltage DC connector labeling on this model may differ from other models. The function and diagnostics for these connectors are identical for all models. – 24 – J4 or J16 J3 or J10 J2 OR J13 J1 or J14 CONTROL B OARD PIN DEFINITIONS CONNECTOR PIN INPUT OUTPUT J15 1 VDC J15 2 Common FUNCTION 12V variable frequency square wave to control compressor speed. Note: The J15 connector controls compressor speed through voltage AND frequency. When the main board calls for compressor operation, J15 output between pins 1 and 2 should be approximately 5 VDC with the harness connected and approximately 12 VDC with the harness disconnected. The voltage will not change regardless of compressor speed. A change in frequency controls the compressor speed. CONTROL B OARD PIN DEFINITIONS CONNECTOR PIN J9 1 INPUT OUTPUT VAC FUNCTION Switched L1 voltage to the defrost circuit - 120 VAC. A timer counts how long this circuit is energized and uses this information to determine if the next defrost cycle is adaptive or nonadaptive. CONTROL B OARD PIN DEFINITIONS CONNECTOR PIN INPUT J11 1 VAC OUTPUT FUNCTION Constant L1 voltage to control board circuits - 120 VAC input potential for switched L1 terminals. CONTROL B OARD PIN DEFINITIONS CONNECTOR PIN J1 2 1 INPUT OUTPUT VAC FUNCTION L1 voltage to the drain pan heater . Some of the low voltage DC connector labeling on this model may differ from other models. The function and diagnostics for these connectors are identical for all models. – 25 – J4 or J16 J3 or J10 J2 OR J13 J1 or J14 Main Control Board Locator Tables Some of the low voltage DC connector labeling on this model may differ from other models. The function and diagnostics for these connectors are identical for all models. J4 or J16 J3 or J10 J1 or J14 J2 OR J13 Main Co n t r o l B o ar d J 8, J 9, J 11 Co n n ec t o r s (Hig h -Vo lt ag e Sid e) Pi n Wir e Co lo r In p u t /Ou t p u t Pin -t o -Pin Vo lt ag e Read in g J9 Red Output J9 to J7 pin 9 = 120 VA J11 Brown Input J11 to J7 pin 9 = 120 VA J1 2 Black Output J12 to J7 pin 9 = 120 VA – 26 – Main Control Board J4 Connector (Low -Voltage DC Side) Pin Wire Color Component Termination Input/Output Pin-to-Pin Voltage Reading 1 Red Temperature control Communication Two-way digital communication between main control board, temperature control (board), dispenser board, and QuickChill board. 2 Brown Temperature control VD C 12-VDC supply. 3 Orange Temperature control VD C DC common. Pin Wire Color Component Termination Input/ Output Pin-to-Pin Voltage Reading 1 Blue Damper Stepper Motor J3 pin 1 to J4 pin 3 = Standing Voltage 2.3 VDC Traveling Voltage = 6.0 VDC 2 White Damper Stepper Motor J3 pin 2 to J4 pin 3 = Standing Voltage 2.3 VDC Traveling Voltage = 6.0 VDC 3 Red Damper Stepper Motor J3 pin 3 to J4 pin 3 = Standing Voltage 2.3 VDC Traveling Voltage = 6.0 VDC 4 Yellow Damper Stepper Motor J3 pin 4 to J4 pin 3 = Standing Voltage 2.3 VDC Traveling Voltage = 6.0 VDC J5 9 1 10 J1 or J14 6 Main Control Board J1 Connector (Low -Voltage DC Side) +5V Custom Cool Thermistor 1 Custom Cool Damper1 + Custom Cool Damper1 - 8 Custom Cool Fan Fan +12V Fan Common Evaporator Fan Condenser Fan J2 or J13 Evaporator Fan Tach. 1 1 5 J3 or J10 1 Inverter Common Inverter Output J15 1 J2 EARTH J4 or J16 Main Control Board J3 Connector (Low -Voltage DC Side) Pin Wire Color Component Termination Input/ Output Pin-to-Pin Voltage Reading 1 Purple Fresh food thermistor 1 Input J1 pin 1 to pin 5 = 2.8 to 3.5 VD C 2 Blue Fresh food thermistor 2 Input J1 pin 2 to pin 5 = 2.8 to 3.5 VD C 3 Red Freezer thermistor Input J1 pin 3 to pin 5 = 2.8 to 3.5 VD C 4 Black Evaporator thermistor Input J1 pin 4 to pin 5 = 2.8 to 3.5 VD C 5 Brown Thermistor supply voltage (5 VDC) Output J1 pin 5 to J4 pin 3 = 5 VDC Main Control Board J5 Connector (Low -Voltage DC Side) Pin Wire Color Component Termination Input/ Output Pin-to-Pin Voltage Reading 1 Yellow QuickChill (Custom Cool) Damper Input/ Output J5 pin 1 to pin 2 = 12 VDC (reversing polarity) 2 Gray QuickChill (Custom Cool) Damper Input/ Output J5 pin 2 to pin 1 = 12 VDC (reversing polarity) 5 Brown Supply Voltage (5 VDC) Output J5 pin 10 to J2 pin 3 = 5 VDC 6 Blue QuickChill (Custom Cool) Thermistor Input N/A Main Control Board J2 Connector (Low -Voltage DC Side) Pin Wire Color Component Termination Input/ Output Pin-to-Pin Voltage Reading 1 Blue Evaporator fan tachometer Input J2 pin 1 to pin 3 = 6.3 VDC 3 White Fan common Common J2 pin 3 to pin 8 = 12 VDC 4 Yellow Evaporator fan Output J2 pin 4 to pin 3 = 12.6 VDC (high), 8.1 VDC (med.), 8.1 VDC (low) 5 Pink Condenser fan Output J2 pin 5 to pin 3 = 13.4 VDC (condenser fan is single sp e e d ) 6 Black Drain pan fan Ground VDC ground 7 Black QuickChill fan Common J2 pin 8 to pin 7 = 12 VDC 8 Red Fan supply voltage (12 VDC) Output J2 pin 8 to pin 3 = 12 VDC – 27 – J4 or J16 J3 or J10 J1 or J14 J2 OR J13 Some of the low voltage DC connector labeling on this model may differ from other models. The function and diagnostics for these connectors are identical for all models. Thermistors This main control board uses input from 4 thermistors. These thermistors are located in the fresh food section, the freezer section, and on the evaporator. The main control board monitors the thermistors to determine the temperature in these areas of the unit and determines which components to run and when to run them based on this information. Thermistor Values Temperature Degrees (C) Temperature Degrees (F) Resistance in Kilo-ohms -40 -40 166.8 kΩ -30 -22 8 8 kΩ -20 -4 48.4 kΩ -10 14 27.6 kΩ 0 32 16.3 kΩ 10 50 1 0 kΩ 20 68 6.2 kΩ 30 86 4 kΩ 40 104 2.6 kΩ 50 122 1.8 kΩ 60 140 1.2 kΩ Temperature Set Point Chart Fresh Food Control Setting Fresh Food Thermistor Temperature Range Minimum Maximum 34 °F 32 °F 36 °F 35 °F 33 °F 36 °F Freez er Control Setting Freez er Thermistor Temperature Range Minimum Maximum -5 °F -10 °F 0 °F 37 °F -4 °F -9 °F 1 °F 34 °F 38 °F -3 °F -8 °F 2 °F 37 °F 35 °F 39 °F -2 °F -7 °F 3 °F 38 °F 36 °F 40 °F -1 °F -6 °F 4 °F 39 °F 37 °F 41 °F 0 °F -5 °F 5 °F 40 °F 38 °F 42 °F 1 °F -4 °F 6 °F 41 °F 39 °F 43 °F 2 °F -3 °F 7 °F 42 °F 40 °F 44 °F 3 °F -2 °F 8 °F 43 °F 41 °F 45 °F 4 °F -1 °F 9 °F 44 °F 42 °F 46 °F 5 °F 0 °F 10 °F 45 °F 43 °F 47 °F 6 °F 1 °F 11 °F – 28 – ELECTRICAL SYSTEM Door and Drawer Switches The door switch (fresh food door or freezer drawer) closes when the door is open. When the door switch is closed, L1 is provided to the compartment light(s). The main control board receives L1 input on pin 6, J7 when the fresh food door switch is closed (door open). The main control board receives L1 input on pin 7, J7 when the freezer drawer switch is closed (door open). Master Light Switch The Master light switch is located behind the grille panel on the control board cover. The master light switch will open the light circuit preventing the interior lights from receiving L1; therefore, the lights will not operate when either door is open. Temperature Overload Device (TOD) A temperature overload device is wired in series with both the fresh food light and the freezer light. If either light should reach excessive temperatures due to a door/drawer being open for an extended period, the corresponding TOD will open the light circuit. The TOD will open at 190°F and close at 130°F. – 29 – SOME OF THE LOW VOLTAGE DC CONNECTOR LABELING ON THIS MODEL MAY DIFFER FROM OTHER MODELS. THE FUNCTION AND DIAGNOSTICS FOR THESE CONNECTORS ARE IDENTICAL FOR ALL MODELS. J4 OR J16 J15 1 2 J1 OR J14 J2 OR J13 J3 OR J10 RED WHITE INVERTER BLUE BLACK BROWN COMPRESSOR R=38 R=1323 6.4 6.4 6.4 GREEN Schematic – 30 – REFRIGERATION SYSTEM Machine Compartment Front View Main Control Board Cover Inverter Water Valve Water Filter Master Light Switch Evaporator Evaporator Thermistor Evaporator Defrost Overtemperature Thermostat Accumulator Defrost Heater – 31 – Compressor and Inverter Evaporator Fan Motor Evaporator Fan Connector Evaporator Fan – 32 – Inverter Compressor The new inverter compressor is not controlled by 120 VAC output from the main control board, as in previous models. The compressor is controlled by the inverter. Warning: Disconnecting the 6-pin connector does not disconnect power (120 VAC) from the inverter. The refrigerator must be unplugged before servicing the inverter or compressor. Caution: Do not attempt to directstart the compressor. The compressor operates on a 3-phase power supply. Applying 120 VAC to the compressor will permanently damage the unit. It is not possible to start the compressor without an inverter. The compressor is a reciprocating, variable speed, 4-pole type. It operates on 3-phase, 80 to 230 VAC within a range of 57 to 104 Hz. Compressor speed is controlled by voltage frequency and pulse width modulation. Increasing frequency from the inverter will produce an increase in compressor speed. • Frequency of 57 Hz will produce low speed operation at 1710 rpm. • Frequency of 70 Hz will produce medium speed at 2100 rpm. • Frequency of 104 Hz will produce 3120 rpm. Note: Certain voltmeters will not be able to read voltage output or frequency from the inverter. Compressor wattages at various speeds are: • LOW - 65 watts • MED - 100 watts • HIGH - 150 watts BTU rating also varies according to operating speed. Compressor speed is based on the temperature set-point in conjunction with the cabinet temperature. Speeds are selected according to the following cabinet temperatures: • 8°F to 19.5°F above set-point = high speed • 6°F to 8°F above set-point = medium speed • 3.5°F to 6°F above set-point = low speed Note: The compressor will run at medium speed if the cabinet temperature is 20°F or more above the set-point. The use of 3-phase power eliminates the need for the PTCR relay, capacitor, and individual start and run windings; therefore the start, run, and common pins found on conventional compressors are not applicable on this 3-phase model. Compressor pin functions are identical and compressor lead wire configuration is of no importance. A resistance of 9Ω to 11Ω should be read between any 2 of the 3 pins. Should an open occur in the compressor winding or should one of the compressor lead wires become open or disconnected, the inverter will stop voltage output to the compressor. – 33 – High compressor torque enables the compressor to start against high pressure in the sealed system. When power has been disconnected from an operating unit, the high torque may enable the compressor to start immediately upon power restoration. The compressor, if unable to start after 12 times, will wait for 8 minutes before trying again. Compressor and sealed system operation is extremely smooth and cool. The compressor exterior may be room temperature while operating; therefore a running unit may be difficult to detect. To verify that the compressor is running: Disconnect power from the unit and place a hand on the compressor. Reconnect power and feel for a vibration when the compressor tries to start. It may take up to 8 seconds before the compressor attempts to start. To determine motor rpm: Measure the frequency of the voltage being applied to the compressor and multiply this number by 30. For example, a frequency measurement of 70 Hz would show a compressor speed of 2100 rpm (30 x 70 = 2100). Note: If the compressor fails to start, the inverter will briefly stop voltage output. The inverter will make 12 consecutive attempts to start the compressor (once every 12 seconds). If, after 12 attempts, the compressor has not started, an 8-minute count will occur. After 8 minutes, the inverter will attempt to start the compressor again. If the compressor starts, normal operation will resume. If the compressor fails to start, the process will be repeated. Removing power from the unit will reset the inverter count. When power is restored, the inverter will attempt to start the compressor within 8 seconds. Note: • When ordering a replacement compressor, order both the compressor and inverter. Replace the compressor first. If, after compressor installation, the compressor fails to start, replace the inverter. • When servicing the compressor, it is important to dress the wiring to keep low voltage DC wiring and 120 VAC wiring separate. – 34 – Inverter Warning: Disconnecting the 6-pin connector does not disconnect power (120 VAC) from the inverter. The refrigerator must be unplugged before servicing the inverter. Note: Certain voltmeters will not be able to read voltage output from the inverter. If no voltage or erratic voltage is measured, it does not necessarily indicate a faulty inverter. The inverter receives 120 VAC line-in from the power supply. The inverter converts this single-phase, 60 Hz, 120 VAC into 3-phase, 230 VAC, with frequency variations between 57 Hz and 104 Hz. This voltage is delivered to the compressor through 3 lead wires. Each wire will carry identical voltage and frequency. When checking inverter voltage output, connect the test-meter leads to any 2 of the 3 compressor lead wires. The same reading should be measured between any 2 of the 3 wires. Note: The compressor leads must be connected to measure voltage output. If the compressor wires are not connected, or if an open occurs in one of the 3 lead wires or in the compressor, the inverter will stop voltage output. The inverter controls compressor speed by frequency variation and by pulse width modulation (PWM). Changing frequency and PWM will cause an effective voltage between 80 and 230 VAC to be received at the compressor. • Low speed (1710 rpm) - 57 Hz • Medium speed (2100 rpm) - 70 Hz • High Speed (3120 rpm) - 104 Hz J15 The inverter receives commands from the main control board. The main control board will send a (PWM) run signal between 1.5 and 3.5 VDC effective voltage to the inverter. The signal voltage at the inverter should be equal to the signal voltage sent by the main control board. The inverter will select compressor speed (voltage output) based on this signal. A signal voltage from the main control board (J15 connector ) lower than 5 VDC indicates a faulty main control board. The main control board will only send a run signal to the inverter when the compressor should be on. Note: When measuring signal voltage (from the main control board) at the inverter, disconnect the wire harness connector at the inverter and measure the voltage at the connector. The inverter will monitor compressor operation and if the compressor fails to start or excessive current draw (4 amps maximum) is detected, the inverter will briefly stop voltage output. The inverter will then make 12 consecutive compressor start attempts (once every 12 seconds). If after 12 attempts the compressor has not started, an 8minute count will initiate. After the 8-minute count, the inverter will attempt to start the compressor again. If the compressor starts, normal operation will resume. If the compressor fails to start, this process will be repeated. Removing power to the unit will reset the inverter count. When power is restored, the inverter will attempt to start the compressor within 8 seconds. The inverter has a built-in circuit protection to guard against damage from a failed or shorted compressor. However, if a failed compressor is diagnosed, order a new compressor and inverter. If the compressor fails to start after replacement, replace the inverter. – 35 – Note: When servicing the inverter, it is important to dress the wiring to keep low-voltage DC wiring and 120 VAC wiring separate. To remove the inverter: 1. Unplug the unit. Wi 2. Open access cover. rin 3. Loosen the 2 hex-head bolts that hold the inverter in place. 4. Disconnect the 2 wiring harnesses from the left side of the inverter. Wi rin g 4. Slide the inverter to the right to disengage the holding tabs. g Ha Ha rne rne ss ss Bolt Note: It may be necessary to bend the process tube in order to remove the inverter. If it is necessary to bend the process tube, use extreme care. Bolt 5. Slide the inverter out of the machine compartment. To remove the inverter cover: Use a small screwdriver to release the two small tabs and carefully remove the inverter cover. Inverter Inverter Line-In (L1) Tabs Signal Signal Wire Wire Connector Connector (From (From Main Main Control Control Board) Board) Compressor Lead Wires – 36 – Condenser The condenser is located behind the grille panel at the top of the refrigerator and is made of steel tubing. The outlet of the condenser is connected to a copper jumper tube that is connected to the inlet of the condenser loop. In a normal home environment, there is no need for routine condenser cleaning. However, in environments that may be particularly dusty or greasy, the condenser should be cleaned periodically for efficient refrigeration operation. An ordinary appliance brush should be all that is needed. Functionally, the condenser does the same job as previous models. Air is drawn through the condenser by the condenser fan from the front left and rear left of the machine compartment. Air exits only from the right side of the machine compartment. Condenser Loop The condenser loop, made of copper tubing, is foamed in place behind the breaker frame and across the mullion. It is not accessible for replacement. The tubing is routed from the machine compartment forward to the mullion, down to the freezer compartment, around the front perimeter of the freezer, and back into the machine compartment. The outlet of the condenser loop is connected to the dryer inlet. INVERTER* COMPRESSOR CONDENSER PROCESS TUBE DRYER SUCTION TUBE EVAPORATOR CONDENSER LOOP CAPILLARY – 37 – Drier Shown with Inverter Removed The drier is positioned vertically in the center of the machine compartment. A copper process tube, connected to the inlet of the drier, provides access to the high-pressure side of the refrigeration system. The capillary is connected to the outlet of the drier. Drier Evaporator The evaporator is made of copper and aluminum and is located above the evaporator fan at the top of the freezer compartment. To replace the evaporator 1. Recover the refrigerant. 2. Remove the evaporator fan (see procedure). 3. Remove the defrost heater (see procedure). 4. Remove the defrost overtemperature thermodisc and evaporator thermistor. 5. Disconnect the ground wire from the evaporator and position all wiring to allow for evaporator removal. 6. Remove the screws securing the evaporator to the cabinet. Caution: Protect wiring from heat during desoldering and resoldering. 7. Desolder the capillary tube from the evaporator. 8. Desolder the suction line. 9. Remove the evaporator. 10. Using a file, score the capillary tube just above the old solder and break the solder-covered section off. This will help prevent the capillary tube from becoming plugged when resoldering. Defrost Overtemperature Thermostat 11. Position the new evaporator in the cabinet. Insert the suction line and capillary tube into the evaporator. 12. Solder the suction line to the evaporator. 13. Solder the capillary tube to the evaporator. Evaporator Thermistor 14. Install a replacement drier WR86X93. 15. Evacuate and recharge the system using currently accepted procedures. Note: Mastic should be replaced on evaporator discharge line after replacing the evaporator. P0003343 – 38 – Auxiliary Line A stainless steel hot gas loop is routed from the machine compartment down the back of the unit into the drain pan and back up to the machine compartment. Hot refrigerant gas flows through the gas loop to assist the evaporation of drain water collected in the drain pan. Refrigerant Charge The refrigerant used in this model is type R134a. Refer to the mini-manual or model tag for the exact refrigerant charge quantity. – 39 – Diagnostic Mode Enter the diagnostic mode by pressing both the freezer temperature pads (plus and minus) and the refrigerator temperature pads (plus and minus) simultaneously. All 4 pads must be held for approximately 3 seconds. A blinking “0” in both displays indicate the refrigerator has entered the test mode. Enter the appropriate display numbers as shown below and press any pad other than the temperature pads to activate that test mode. Freezer Display Fresh Food Display Diagnostics Results Comments 0 1 Showroom Mode. Unit in showroom mode. FF door must be closed and reopened to start showroom mode. 0 2 Communication check between temperature control and main control board. "P" on FZ display if OK. "F" on FZ display means problem is found. 0 3 Communication check between temperature control and dispenser. "P" on FZ display if OK. "F" on FZ display means problem is found. 0 4 Communication check between dispenser and main control board. "P" on FZ display if OK. "F" on FZ display means problem is found. 0 6 HMI (temperature control) Self Test. All LED's and numeric segments will illuminate. When "Express Thaw" pad is pressed "Express Thaw" LED's will turn off. When "Express Chill" pad is pressed "Express Chill" LED's will turn off. 0 7 Control and Sensor System Self Test. Checks each thermistor and displays "P" for pass and "0" for fail. See note 1 below. 0 8 Open Duct Door. Duct door opens for 10 seconds then closes. 0 9 Dispenser Recess Heater Test. Turns the dispenser recess heater on for 60 seconds. 1 0 Dampers Test. Each damper will open, pause breifly, then close. 1 2 100% Run Time. Sealed system on 100% of the time. Times out after 1 hour. Cannot be entered if refrigerator is set to off. 1 3 Pre-chill Test. Starts pre-chill mode. Unit returns to normal on its own. Cannot be entered if refrigerator is set to off. 1 4 Defrost Test. Toggles the defrost cycle. See note 2 below. Must press again to turn heaters off. Cannot be entered if refrigerator is set to off. See note 2 below. 1 5 Main Control Reset. Causes a system reset. 1 6 Exit Diagnostic Mode. Causes a temperature control board reset. 1 7 Degree C/F. Changes temperature display from F to C. Note 1: Display order is: 1) Fresh Food 1, 2) Fresh Food 2, 3) Freezer, 4) Evaporator, 5) Custom Cool. Thermistor test results are P = pass, 0 = fail, S = short to 5 VDC, B = bad amplifier (replace main control). Note 2: You must enter the defrost test again to toggle the defrost heater off at the end of the test. The heater will not come on if the evaporator thermistor or overtemperature thermodisc is warm. – 40 – Illustrated Parts – 41 – – 42 – – 43 – – 44 – – 45 – VIEW NUMBER CATALOG NUMBER DESCRIPTION 0001 0001 0001 0099 0118 0200 0216 0237 0237 0390 0420 0434 0599 0608 0609 0610 0611 0610 0612 0614 0615 0618 0626 0650 0651 0626 0683 0690 0704 0725 0736 0690 0737 0740 0741 0750 0752 0753 0762 0790 0791 0792 0753 0753 0800 0801 0804 0791 31-51562 49-60316 49-60320 WB02X10831 WR19X0035 WR17X11561 WR32X1435 WR55X10028 WR55X10025 WR01X1826 WR60X10106 WR02X10732 WR02X10509 WR23X10286 WR23X10143 WR60X10083 WR02X10521 WR60X10043 WR02X10653 WH01X2722 WR02X10519 WR02X10520 WR23X0108 WR60X10053 WR60X10049 WR23X10300 WR01X1716 WR01X1466 WR01X10301 WR87X10064 WR02X8583 WZ5X158D WR02X10099 WR86X93 WR01X1779 WR01X1786 WR02X8470 WR02X10548 WR14X0313 GWF WR02X10577 WR17X10707 WR01X10287 WR02X10764 WR57X10034 WR55X10433 WR57X0057 WR02X11705 MINI MANUAL DATA SHEET OWNER’S MANUAL INSTALL INSTRUCTION MG LOGO LARGE ADHESIVE DISH BUTTER ASM SWITCH PLATE LH BUCKET EGG SENSOR TEMP SENSOR TEMP SCREW DC FRESH FOOD FAN SOCKET STRAIGHT LIGHT FZ RING COMPRESSION FAN SWITCH LIGHT FZ SWITCH LIGHT FF MOTOR DC EVAP FAN BRACKET COND FAN (MTG) MOTOR DC EVAP FAN BRACKET ORIFICE FAN BUMPER LID GROMMET EVAP FAN GROMMET COND FAN POWER CORD MOTOR DC COND FAN BLADE COND FAN ASM POWER CORD SCREW, FAN MOTOR SCR 8-32 T HXW 3/8 S MAIN BOARD STAND OFFS COMPRESSOR REPL ASM CLIP COMP MTNG SCR 8-32 T HXW 3/8 S GROMMET DRIER STUD MTG COMPR SCR 10-32 TR T 1/2 FT WHEEL BKT BRACKET EVAP FAN BTM FOAM STRIP FILTER CANISTER PLUG BYPASS FILTER FILTER MNT & TUBE ASM BRACKET EVAP FAN BTM BRACKET EVAP FAN BTM VALVE WATER MOTHER BOARD NUT SLEEVE 1/4 PLUG BYPASS FILTER – 46 – QUANTITY 1 1 1 1 1 1 1 4 4 4 1 1 2 1 1 1 1 1 1 4 2 2 1 1 1 1 8 4 4 1 4 4 4 1 4 4 2 1 2 1 1 1 1 1 1 1 1 1 VIEW NUMBER CATALOG NUMBER DESCRIPTION 0806 0809 0820 0902 0903 0905 1326 1503 0806 1505 0809 1508 1511 0902 1513 1515 1517 1521 1530 1531 1533 1537 1539 1544 1546 1548 1549 1550 1521 1551 1553 1557 1571 1580 1591 1600 1606 1610 2363 2567 2568 2591 2843 3514 1571 3521 3522 1591 WR17X2107 WR02X11452 WR30X10012 WR02X11262 WR55X10155 WR23X10381 WR02X3736 WR74X10159 WR17X11349 WR17X11006 WR02X11453 WR02X11023 WR74X10085 WR02X11262 WR02X10942 WR74X10096 WR74X10086 WR02X10941 WR02X10980 WR71X10325 WR02X10944 WR12X10644 WR02X10945 WR49X10093 WR02X10946 WR74X10097 WR74X10098 WR17X11009 WR02X10941 WR01X5645 WR17X11010 WR74X10081 WR78X10497 WR74X10089 WR78X10514 WR17X11794 WR02X11933 WR17X11795 WR01X5684 WR13X10200 WR13X10201 WR02X10154 WR01X1903 WR17X11011 WR78X10889 WR02X10951 WR01X10254 WR78X10887 WATER LINE AMP J10 CONNECTOR ELECTRONIC IM-DOM RELAY COVER INVERTER ASM HARNESS INVERTER COMM CLAMP TUBE GRILLE PANEL ASM. WATER LINE HOUSING DRAIN PAN AMP J10 CONNECTOR FIXTURE LIGHTING BRACKET LIGHT SOCKET FZ RELAY COVER FF THERMISTOR HOLDER PLATE FAN MOTOR MTG. FILL TUBE COVER BRKT REFRIG PAN GUIDE CLOSURE ASM TOP DOOR LH FF AIR DIFFUSER FZ THERMISTOR CLIP HANDLE FF BRKT COND FAN MOTOR LG FILL TUBE KIT BM/SXS(D) FILTER BRACKET EVAPORATOR COVER 36" BM EVAPORATOR FAN COVER BRACKET DAMPER MTG BRKT REFRIG PAN GUIDE SCREW IM STRAP, PAN WATER COLLECTOR HOOD HINGE MOUNT 36 FZ DRAWER FOAMED ASM TOE KICK 36 BM FF DR FOAM ASM LH PAN SYSTEM MOTHER BOARD COVER BAFFLE CONDENSER 6-32 X 3/8 PHIL S/S TYPE CHANNEL BASE ASM (RH) CHANNEL BASE ASM (LH) PLUG BUTTON #413 I/M SCREW CASE TRIM HOUSING COND FAN FZ DRAWER FOAMED ASM BHNG ARM NYLON FF DR CL BOLT SHOULDER FF DOOR FF DR FOAM ASM LH – 47 – QUANTITY 1 1 1 1 1 1 2 1 1 1 1 1 1 1 1 1 1 2 1 2 1 1 1 1 1 1 1 1 2 17 1 1 1 1 1 1 1 1 2 1 1 1 12 1 1 1 1 1 VIEW NUMBER CATALOG NUMBER DESCRIPTION 3542 3546 3548 3568 3571 3572 3574 3599 3620 4543 4544 5000 5001 5059 5062 5064 5065 5074 5075 5076 5086 3599 5108 5117 5149 5150 5166 5180 5197 5205 5208 5220 5222 5223 5225 5226 5227 5232 5117 5245 5261 5308 5359 5391 5406 5407 5412 5413 WR01X10255 WR17X11354 WR01X10256 WR60X10050 WR13X10202 WR02X10953 WR02X10954 WR29X10021 WR02X11335 WR02X10149 WR02X10150 WR85X10007 WR51X10015 WR32X10072 WR02X10141 WR32X10073 WR32X10074 WR17X10347 WR32X10075 WR21X10007 WR02X10142 WR29X10046 WR17X10349 WR09X10065 WR72X10011 WR32X10076 WR01X10045 WR71X10142 WR02X10145 WR72X10012 WR22X10007 WB07X10461 WR01X10046 WR14X10011 WR14X10012 WR01X10047 WR72X10013 WR01X10048 WR09X10050 WR72X10084 WR49X10015 WR72X10014 WR01X10049 WR71X10138 WR71X10139 WR71X10140 WR32X10077 WR32X10078 SPRING FF DOOR CLOSURE CASE TRIM TOP 36 BASE SHAFT BLADE FAN MOTOR HINGE DOOR BOTTOM BUSHING HINGE BOTTOM BUSHING HINGE TOP CUP FILL IM TRIM CORNER KEY PAN SUPPORT SNACK PAN PAN SUPPORT ASM VEG PAN EVAP COIL DEFROST HEATER 36BM SNACK PAN COVER TUBE - WATER VALVE INLET VEG PAN COVER ENCAP SHELF ASSY LIGHT SHIELD FZ ICE BUCKET FZ BASKET LG VENT GUARD 36BM CUP FILL IM DRAIN BAFFLE DAMPER MOTORIZED DIVIDER ASM VEG. PANS SHOWCASE LID ASM. WIRE RETAINER EVAP HEATE ASM DAIRY COMP BAFFLE EVAP LH SUPPORT, SLIDE RH SEAL DAIRY ASM SEAL, FRONT SNACK PAN WASHER SHOWCASE PIVOT SEAL, RR SNACK PAN SEAL, FRT VEG PAN GLASS BUTTON GLIDE SUPPORT, SLIDE LH BUSHING, SHOWCASE PIVOT DAMPER MOTORIZED FZ SLIDE/SUPPORT ASM LH MULLION BLOCK KIT BTM.MT FZ SLIDE/SUPPORT ASSY RH SCREW, TRUSS HD 1/4-20 X BIN, FF DOOR W/WINDOW BIN, DOOR FF DEEP RH BIN, DOOR FF DEEP LH VEG PAN ASM SNACK PAN ASM – 48 – QUANTITY 1 1 2 1 1 1 1 1 2 2 2 1 1 1 1 2 4 1 1 1 1 1 1 1 1 2 2 2 1 1 1 2 2 2 2 4 1 2 1 1 1 1 8 4 1 1 2 2 VIEW NUMBER CATALOG NUMBER DESCRIPTION 5421 5518 5620 7271 7288 7317 7327 5245 7500 7503 5308 7504 7505 7506 7507 7508 7509 7510 7513 7515 7516 7518 7288 7520 7523 7524 7525 7528 7533 7534 7535 7536 7538 7541 7542 7544 7545 7546 7557 7558 7559 7560 7561 7562 7524 7566 7567 7569 WR01X10050 WR14X10014 WR02X8377 WR01X10051 WR01X1831 WR17X3046 WR50X10003 WR72X10124 WR50X10030 WR02X10956 WR72X10125 WR02X10957 WR12X10492 WR21X10043 40A15 WR72X10080 WR72X10081 WR72X10082 WR17X11560 WR13X10203 WR17X11014 WR02X10958 WR01X5686 WR01X10257 WR38X10247 WR17X11097 WR17X11036 WR72X10085 WR17X11180 WR17X11558 WR17X11559 WR74X10082 WR17X11015 WR13X10204 WR13X10205 WR02X11024 WR17X11016 WR17X11562 WR17X11553 WR17X11554 WR17X11555 WR17X11556 WR12X10642 WR17X11098 WR17X11027 WR24X10147 WR24X10148 WR55X10098 SCREW, #8 18 X 7/8 SEAL REAR VEG PAN GLASS WHEEL ASM REAR 10-24*7/8 PHIL P-HD TAP SCREW GRILLE MTG. 1/4 CLAMP NYLON THERMOSTAT FZ SLIDE/SUPPORT ASM LH EVAP. THERMODISC BRACKET GRILLE LH FZ SLIDE/SUPPORT ASSY RH BRACKET GRILLE RH DR HNDL TRIM FF LH/RH BASKET UPPER FRZ LAMP 40W SUPPORT BASKET UPPER FZ SLIDE LINER UPPER FZ SLIDE BASKET UPPER FZ FF DOOR BTM- RH HINGE HINGE UPPER FF CASE LIGHT SHIELD FF WATER VALVE BRKT SCREW GRILLE MTG. PIN BTM. LOWER HINGE EDGE TRIM FZ REAR DUCT SHELF TRACK CENTER CTRL. PANEL TEMP. CTRL. FREEZER SLIDE SHIM CASE TRIM FF SIDE FF DOOR TRIM RH HINGE FF DOOR TRIM TOP- RH HIN HOUSING CONTROL TRIM LIGHTING FF HINGE ASM GRILLE LEFT HINGE ASM GRILLE RIGHT SOCKET LAMP FF DRAIN PAN RH HINGE SIDE TRIM FZ DOOR TRIM RH FZ DOOR TRIM LH FZ DOOR HANDLE TRIM FZ DOOR TRIM BOTTOM FZ DOOR HANDLE EVAPORATOR TROUGH SHELF TRACK CENTER GASKET FF DOOR BM GASKET FZ DOOR BM BOARD ASM TEMP CONTROL – 49 – QUANTITY 2 2 2 9 2 4 2 1 1 1 1 1 1 1 4 2 2 2 1 1 1 1 2 1 1 1 1 2 1 1 1 1 1 1 1 4 1 1 1 1 1 1 1 1 1 1 1 1 VIEW NUMBER CATALOG NUMBER DESCRIPTION 7570 7572 7573 7580 7581 7582 7584 7590 7595 7752 7766 7768 7769 7770 7871 7873 7951 8141 8292 7569 8293 7570 8350 8536 8613 8665 8738 8822 9500 WR23X10220 WR86X10016 WR01X10258 WR13X10210 WR02X11612 WR84X10030 WR38X10255 WR13X10211 WR02X10979 WR01X1845 WR02X8799 WR02X10479 WR02X8800 WR13X0637 WR57X10016 WR57X10017 WR02X10151 WR17X4141 WR72X0269 WR55X10159 WR72X0270 WR49X10070 WR17X4140 WR17X10675 WR01X10052 WR01X2130 WR01X10053 WR01X10326 WR14X10040 MASTER LIGHT SWITCH CAP/SUCTION TUBE ASM STUD SPRING FF DOOR HINGE DOOR TOP FF LH EYEBROW LH CONDENSER MONOGRAM BM GASKET FF LIGHT TRIM HINGE CENTER LH LINK ACTUATOR LH SCREW 12-24TT OHT .900 SPRING WHEEL #LE022C4 LEVELING LEG AXLE REAR STOP DOOR COMPRESSION NUT 1/4 BRASS FERRULE TWIST SUPPORT WINE RACK SLIDE FULL EXT10 BOARD ASM TEMP CONTROL SLIDE FULL EXT12 MASTER LIGHT SWITCH TRACK SHELF FF DRAIN TRAP AUX. COND. #8-18AB X 1/2 PHILS TRUS TRIM SCREW #8-18 TYPE AB X 3/8 BLK #6-32 X 3/16 MACH SCR. SEAL FRONT SHOWCASE LID – 50 – QUANTITY 1 1 1 1 1 2 2 1 1 12 2 2 2 1 1 1 4 1 4 1 4 1 2 1 19 24 2 4 2 WARRANTY YOUR MONOGRAM REFRIGERATOR WARRANTY Staple sales slip or cancelled check here. Proof of original purchase date is needed to obtain service under warranty. WHAT IS COVERED From the Date of the Original Purchase FULL TWO-YEAR WARRANTY For two years from date of original purchase, we will provide, free of charge, parts and service labor in your home to repair or replace any part of the refrigerator that fails because of a manufacturing defect. FULL FIVE-YEAR WARRANTY For five years from date of original purchase, we will provide, free of charge, parts and service labor in your home to repair or replace any part of the sealed refrigerating system (the compressor, condenser, evaporator and all connecting tubing) that fails because of a manufacturing defect. LIMITED ADDITIONAL SEVEN-YEAR WARRANTY ON THE SEALED SYSTEM For the sixth through twelfth year from the date of the original purchase, we will provide, free of charge, replacement parts for any part of the sealed refrigerating system (the compressor, condenser, evaporator and all connecting tubing) that fails because of a manufacturing defect. You pay for the service trip to your home and for service labor charges. LIMITED LIFETIME WARRANTY ON ACCURIDE® SLIDES From the date of the original purchase we will provide, free of charge, replacement parts for any part of the Accuride Slides that fails because of a manufacturing defect. You pay for the service trip to your home and for service labor charges. This warranty is extended to the original purchaser and any succeeding owner for products purchased for ordinary home use in the 48 mainland states, Hawaii and Washington, D.C. In Alaska the warranty is the same except that it is LIMITED because you must pay to ship the product to the service shop or for the service technician’s travel costs to your home. All warranty service will be provided by our Factory Service Centers or by our authorized Customer Care® servicers during normal working hours. Should your appliance need service, during warranty period or beyond, in the U.S.A. call 800.444.1845. In Canada: 888.880.3030. WHAT IS NOT COVERED • Service trips to your home to teach you how to use the product. • Replacement of house fuses or resetting of circuit breakers. • Damage to the product caused by accident, fire, floods or acts of God. • Failure of the product if it is used for other than its intended purpose or used commercially. • Improper installation. If you have an installation problem, contact your dealer or installer. You are responsible for providing adequate electrical, plumbing and other connecting facilities. • Loss of food due to spoilage. • Incidental or consequential damage caused by possible defects with this appliance. Some states do not allow the exclusion or limitation of incidental or consequential damages, so the above limitation or exclusion may not apply to you. This warranty gives you specific legal rights, and you may also have other rights which vary from state to state. To know what your legal rights are in your state, consult your local or state consumer affairs office or your state’s Attorney General. Warrantor: General Electric Company, Louisville, KY 40225 – 51 –
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