3828EL3001C LG Dryer DLE6942 Service Manual
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DLE5944WM DLE0442-LG-Electric-Dryer-Repair-Service-Manual
2013-04-09
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Website:http://www.LGservice.com [For U.S.A] www.lg.ca [For Canada] ELECTRIC & GAS DRYER SERVICE MANUAL CAUTION READ THIS MANUAL CAREFULLY TO DIAGNOSE TROUBLES CORRECTLY BEFORE OFFERING SERVICE. MODEL : DLE0442W DLE0442S DLE6942W DLE5944WM DLE2544W DLG0452W DLG0452S DLG6952W DLG5955WM DLG2555W 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. WHAT TO DO IF YOU SMELL GAS: ■ Do not try to light a match, or cigarette, or turn on any gas or electrical appliance. ■ Do not touch any electrical switches. Do not use any phone in your building. ■ Clear the room, building or area of all occupants. ■ Immediately call your gas supplier from a neighbor’s phone. Follow the gas supplier’s instructions carefully. ■ If you cannot reach your gas supplier, call the fire department. IMPORTANT Electrostatic Discharge (ESD) Sensitive Electronics ESD problems are present everywhere. ESD may damage or weaken the electronic control assembly. The new control assembly may appear to work well after repair is finished, but failure may occur at a later date due to ESD stress. Use an anti-static wrist strap. Connect wrist strap to green ground connection point or unpainted metal in the appliance. - OR - Touch your finger repeatedly to a green ground connection point or unpainted metal in the appliance. Before removing the part from its package, touch the anti-static bag to a green ground connection point or unpainted metal in the appliance. Avoid touching electronic parts or terminal contacts; handle electronic control assembly by edges only. When repackaging failed electronic control assembly in anti-static bag, observe above instructions. 2 CONTENTS 1. SPECIFICATIONS ..................................................................................................................4 2. FEATURES AND BENEFITS .................................................................................................... 5 3. INSTALLATION INSTRUCTIONS ........................................................................................... 6 4. COLUMBUS DRYER CYCLE PROCESS .................................................................................... 9 5. COMPONENT TESTING INFORMATION ..............................................................................10 6. MOTOR DIAGRAM AND SCHEMATIC..................................................................................13 7. CONTROL LAY - OUT .........................................................................................................14 8. WIRING DIAGRAM ............................................................................................................15 9. DIAGNOSTIC TEST .............................................................................................................16 9-1. TEST 1 120VAC ELECTRICAL SUPPLY..........................................................................17 9-2. TEST 2 THERMISTOR TEST --- MEASURE WITH POWER OFF .......................................18 9-3. TEST 3 MOTOR TEST ................................................................................................19 9-4. TEST 4 MOISTURE SENSOR ....................................................................................20 9-5. TEST 5 DOOR SWITCH TEST ...................................................................................21 9-6. TEST 6 HEATER SWITCH TEST - ELECTRIC TYPE...........................................................22 9-7. TEST 7 GAS VALVE TEST - GAS TYPE .........................................................................23 10. CHANGE GAS SETTING (NATURAL GAS, PROPANE GAS) ...............................................24 11. DISASSEMBLY INSTRUCTIONS .........................................................................................26 12. EXPLODED VIEW ..............................................................................................................32 12-1. CONTROL PANEL & PLATE ASSEMBLY .......................................................................32 12-2. CABINET & DOOR ASSEMBLY...................................................................................33 12-3-1. DRUM & MOTOR ASSEMBLY : ELECTRIC TYPE ........................................................34 12-3-2. DRUM & MOTOR ASSEMBLY : GAS TYPE ...............................................................35 13. REPLACEMENT PARTS LIST ................................................................................................36 3 1 SPECIFICATIONS DLE0442W DLE2544W DLE6942W DLE0442S DLE5944WM DLG2555W DLG6952W DLG0452S DLG0452W DLG5955WM ITEM Material & Finishes Color White Top Plate Porcelain Door Trim Silver POWER SUPPLY ELECTRICITY CONSUMPTION Titanium White REMARK White Porcelain Porcelain Spray Chrome White Chrome 120V / 240V 60Hz (26A) MOTOR 250W (4.5A) AC 120V HEATER 5400W (22.5A) AC 240V ( ELECTRIC TYPE) LAMP 15W (125mA) AC 120V GAS VALVE AC 120V ( GAS TYPE) 13W (110mA) X 2 CONTROL TYPE Electronic DRUM CAPACITY 7.3 cu.ft. Weight (lbs): Net / Gross 126 / 144 No. of Programs 9 9 9 No. of Dry Option 5 5 5 No. of Temperature Controls 5 5 5 No. of Dry Levels 5 5 5 Audible End of Cycle Beeper High / Low / Off High / Low / Off High / Low / Off Moisture Equipped Electro sensor Temperature Equipped Thermistor Sensor Reversible Door Adopted Drum Stainless Steel Dryer Rack Equipped Child lock Equipped Interior Light Equipped Product (WXHXD) 27" x 42 3/4" x 28 1/3" Packing (WXHXD) 29 1/2" x 44 3/4" x 30 3/4" 4 2 FEATURES AND BENEFITS DLE0442W/DLG0452W/DLE0442S/DLG0452S/DLE6942W/DLG6952W/DLE5944WM/ DLG5955WM DLE2544W/DLG2555W 5 3 INSTALLATION INSTRUCTIONS 3-1. POWER CORD 1) 4-wire connection 3. Connect ground wire (green or bare) of power supply cable to external ground conductor screw. Tighten screw. 4. Connect neutral wire (white or center wire) of power supply cord to the center, silver colored terminal screw of the terminal block. IMPORTANT: A 4-wire connection is required for mobile homes and where local codes do not permit the use of 3 wire connections. 1 2 3 4 6 5 1 2 7 1. 4-wire receptacle (NEMA type 14-30R) 2. 4-prong plug 3. Ground prong 4. Neutral prong 5. Spade terminals with upturned ends 6. 3/4 in. (1.9 cm) UL approved strain relief 7. Ring terminals 3 1. External ground connector 2. Green or bare copper wire of power supply cord 3. 3/4 in. (1.9 cm) UL-listed strain relief 4. Center silver-colored terminal block screw 5. Neutral grounding wire (green) 6. Neutral wire (white) 1. Remove center terminal block screw. 2. Remove appliance ground wire (green) from external ground connector screw. Fasten it under center, silver colored terminal block screw. 1 4 5 6 5. Connect the other wires to outer terminal block screws. Tighten screws. 6. Tighten strain relief screws. 7. Insert tab of terminal block cover into slot of dryer rear panel Secure cover with hold-down screw. 2 3 1. External ground connector - Dotted line shows position of NEUTRAL ground wire before being moved to center terminal block screw 2. Center silver-colored terminal block screw 3. Green wire of harness 6 2) 3-wire connection 3) Optional 3-wire connection Use where local codes permit connecting cabinet-ground conductor to neutral wire. Use where local codes permit connecting cabinet-ground conductor to neutral wire. 1 2 4 1. Remove center terminal block screw. 2. Remove appliance ground wire (green) from external ground connector screw. Connect appliance ground wire and the neutral wire (white or center wire) of power supply cord/cable under center, silver colored terminal block screw. Tighten screw. 3. Connect the other wires to outer terminal block screws. Tighten screws. 5 3 7 6 1. 3-wire receptacle (NEMA type 10-30R) 2. 3-wire plug 3. Neutral prong 4. Spade terminals with up turned ends 5. 3/4 in. (1.9 cm) UL approved strain relief 6. Ring terminals 7. Neutral (white or center wire) 1. Loosen or remove center terminal block screw. 2. Connect neutral wire (white or center wire) of power supply cord to the center, silver colored terminal screw of the terminal block. Tighten screw. 1 2 4. Tighten strain relief screws. 5. Insert tab of terminal block cover into slot of dryer rear panel. Secure cover with hold-down screw. 6. Connect a separate copper ground wire from the external ground connector screw to an adequate ground. 3 4 5 1 2 3 1. External ground connector 2. Neutral grounding wire (green) 3. Center silver-colored terminal block screw 4. Neutral wire (white or center wire) 5. 3/4 in. (1.9 cm) UL-listed strain relief 4 3. Connect the other wires to outer terminal block screws. Tighten screws. 4. Tighten strain relief screws. 5. Insert tab of terminal block cover into slot of dryer rear panel. Secure cover with hold-down screw. 1. External ground connector 2. Neutral grounding wire (green) 3. Neutral wire (white or center wire) 4. Grounding path determined by a qualified electrician 7 3-2. Connect Gas Supply Pipe (Gas Dryer ONLY) For further assistance, refer to section on Gas Requirements. 1. Make certain your dryer is equipped for use with the type of gas in your laundry room. Dryer is equipped at the factory for Natural Gas with a 3/8” N.P.T. gas connection. 2. Remove the shipping cap from the gas connection at the rear of the dryer. Make sure you do not damage the pipe thread when removing the cap. 3. Connect to gas supply pipe using a new flexible stainless steel connector. 4. Tighten all connections securely. Turn on gas and check all pipe connections (internal & external) for gas leaks with a non-corrosive leak detection fluid. 5. For L.P. (Liquefied Petroleum) gas connection, refer to section on Gas Requirements. 1 2 5 3 4 1 New Stainless Steel Flexible Connector - Use only if allowed by local codes (Use Design A.G.A. Certified Connector) 2 1/8” N.P.T. Pipe Plug (for checking inlet gas pressure) 3 Equipment Shut-Off Valve-Installed within 6’ (1.8 m) of dryer 4 Black Iron Pipe Shorter than 20’ (6.1 m) - Use 3/8” pipe Longer than 20’ (6.1 m) - Use 1/2” pipe 5 3/8” N.P.T. Gas Connection 8 4 COLUMBUS DRYER CYCLE PROCESS Default Cycle Heavy Duty Sense Dry * Manual Dry ** Conditions of operation and termination Drying Cooling Temp- Dry Display erature Level time Electro- Temp- Default Tempsensor Control time Control** High Wrinkle care Time (Normal) 54min Saturation 70±5°C (5min) 47±5°C Cotton/ Towel Medium (Normal) 55min Saturation 66±5°C (5min) 47±5°C High Normal Medium (Normal) 41min Saturation 62±5°C (5min) 47±5°C 3Hr Perm. Permanent Press Low (Normal) 36min Saturation 55±5°C (5min) 47±5°C Delicate Low (Normal) 32min Saturation 55±5°C (5min) 38±5°C Ultra Delicate Extra low (Normal) 34min Saturation 45±5°C (5min) 38±5°C Speed dry (High) - 25min Saturation (70±5°C) (5min) (47±5°C) Freshen Up (Medium High) - 20min Saturation (66±5°C) (5min) (47±5°C) Air dry - - 30min Saturation No heater N/A 3Hr N/A Off Time: 6min Motor On Time: 10sec Load Temperature Control for each cycle Heater * Sense dry : “Dry Level” is set by users. ** Manual dry : “Temperature control” is set by users. Default settings can be adjusted by users. 9 5 ! COMPONENT TESTING INFORMATION CAUTION When checking the Component, be sure to turn the power off, and do voltage discharge sufficiently. Component 1. Thermal cut off • Check Top Marking : N130 2. Hi limit Thermostat (Auto reset) 3. Outlet Thermostat ( Auto reset) • Check Top Marking : N85 Test Procedure Remark Measure resistance of terminal If thermal fuse is open must • Heater caseto terminal be replaced Safety ± • Electric type Open at 284 12°F Resistance value ≒ ∞ ± (140 7°C) Auto reset -31°F (-35°C) Continuity (250°F ) < 1Ω Same shape as Outlet Thermostat. Measure resistance of terminal to terminal Open at 257 ± 9°F (125 ± 5°C) Close at 221 ± 9°F (105 ± 5°C) Measure resistance of terminal to terminal Open at 185 ± 9°F (85 ± 5°C) Close at 149 ± 9°F (65 ± 5°C) Same shape as Thermal cut off. 4. Lamp holder Measure resistance of terminal to terminal 5. Door switch Measure resistance of the following terminal 1) Door switch knob : open Terminal : “COM” - “NC” (1-3) Terminal : “COM” - “NO” (1-2) 2) Door switch push : push Terminal : “COM” - “NC” (1-3) Terminal : “COM” - “NO” (1-2) 6. Idler switch Check result Measure resistance of the following terminal : “COM - NC” 10 Resistance value ≒ ∞ • Heater case Hi limit • Electric type Resistance value < 5Ω Resistance value ≒ ∞ • Blow housing Safety • Electric type Resistance value < 5Ω Resistance value : 80Ω ~ 100Ω Resistance value < 1Ω Resistance value ≒ ∞ Resistance value ≒ ∞ Resistance value < 1Ω 1. lever open Resistance value < 1Ω 2. Lever push (close) Resistance value ≒ ∞ The state that Knob is pressed is opposite to Open condition. Component 7. Heater Test Procedure Measure resistance of the following terminal Terminal : 1 (COM) - 2 Terminal : 1 (COM) - 3 Terminal : 2 - 3 8. Thermistor Measure resistance of terminal to terminal Temperature condition : 58°F ~ (10~40°C) 58°F ~ 104F (10~40°C) Check result • Electric type Resistance value : 10Ω Resistance value : 10Ω Resistance value : 20Ω Resistance value : 10Ω 9. Motor 10. Gas valve Remark • Heater case Hi limit • Electric type • See Page 13 valve 1 Measure resistance of the following terminal Valve 1 terminal Valve 2 terminal • Gas type Resistance value : > 1.5kg ~ Resistance value : > 1.5~2.5kg valve 2 11. Igniter Measure resistance of terminal to terminal Resistance value : 100~800Ω • Gas type 12. Frame Detect Measure resistance of terminal to terminal Open at 370°F ((Maximum) Close at 320°F • Gas type 11 Resistance value ≒ ∞ Resistance value < 1Ω Component 13. Hi-limit Thermostat (Auto reset) Test Procedure Measure resistance of terminal to terminal Open at 203 ± 7°F (95 ± 5°C) Close at 158 ± 9°F (70 ± 5°C) Check result Resistance value ≒ ∞ Continuity < 1Ω Remark • Gas type • Gas funnelHi-limit • Check Top Marking : N95 13. Thermal Cut off (Manual reset) Measure resistance of terminal to terminal Open at 230 ± 12°F (110 ± 7°C) Manual reset • Check Top Marking : N110 12 If thermal fuse is open must be replaced Resistance value ≒ ∞ Continuity < 1Ω • Gas type • Gas funnelSafety 6 MOTOR DIAGRAM AND SCHEMATIC NOTE When checking Component, be sure to turn Power off, then do voltage discharge sufficiently. Contact On / Off by Centrifugal Switch STOP MODE (When Motor does not operate) RUN MODE (Motor operates) Centrifugal switch (Pull Drive forward) Centrifugal switch 13 7 CONTROL LAY - OUT PWB ASSEMBLY DISPLAY LAY-OUT MODEL DISPLAY AS DIAGNOSTIC TEST OPTION PART OP 1 OP 2 OP 3 OP 4 OP 5 OP 6 LED DISPLAY DLE0442W/S / DLE6942W DLE5944WM O X X X X X 18:23 6871EC2123B DLG0452W/S / DLG6952W DLG5955WM O X O X X X 19:23 6871EC2123C DLE2544W X O X X X X 18:25 6871EC2123E DLG2555W X O O X X X 19:25 6871EC2123F MODEL PWB ASSEMBLY LAY-OUT 14 P/No 8 WIRING DIAGRAM ELECTRIC DRYER WIRING DIAGAM DLE5944WM DLG5955WM 15 ORANGE BLUE GAS DRYER WIRING DIAGAM 9 DIAGNOSTIC TEST 1. This TEST should be used for Factory test /Service test. Do not use this DIAGNOSTIC TEST other than specified. 2. Activating the Heater manually with the Door open may trip the Thermostat attached to the Heater, therefore do not activate it manually. (Do not press the door switch to operate the heater while the door is open ) ACTIVATING THE DIAGNOSTIC TEST MODE 1. Unit must be in Standby (unit plugged in, display off) 2. Press “POWER” while pressing “MORE TIME”, and “LESS TIME” simultaneously. Pressing the “START/PAUSE” button CHECKING ACTION DISPLAY Electric control & Temperature sensor None CHECKING POINT REMARK Won’t power up Defective LED See test 1 Display : See page Thermistor open See test 2 Thermistor close Motor runs Motor Once ELECTRIC TYPE Motor + Heater 1 (1250W) ■ GAS TYPE Motor + Valve 70 ~ 237 Displays Moisture Sensor Operation: Measured If moisture sensor is contacted with Moisture Value. damp cloth. The display number is below 180, in normal condition. ELECTRIC TYPE Motor + Heater 1 + Heater 2 (5400W) ■ GAS TYPE Motor Type Current Temp. ■ 3 times During check, If the door is open. 4 times Current Temp. (5 ~ 70) Motor & Heater Off + Lamp On + Buzzer beeps five times During check, Motor & Heater Off If the door is closed. + Lamp Off See test 4 ■ ■ Twice ELECTRIC TYPE : Heater runs GAS TYPE : GAS Valve runs (Display the Temperature of Inside drum.) See test 3 ■ In normal state if displayed temp. is increasing. Temperature in 4min : 113°F (45°C) • Above : 1” on , 1” off beep sound • Under : 0.5” on, 0.5” off beep sound Door switch Lamp 70 ~ 237 Return once “1time” (See test 4) state. Auto Off Control Off 16 Gas valve See test 7 See test 5 Off automatically after 5 minutes See test 6 Test 1 120VAC Electrical supply When measuring power, be sure to wear insulated gloves, to and avoid an electric shock. Caution Trouble Symptom No power was applied to Controller. (LED, Display off) Measurement Condition With Dryer Power On; Connector linked to Controller. Check the outlet, is the voltage 110V ~ 125V AC? NO • Check the fuse or circuit breaker. NO • Check if Power Cord is properly connected. NO • Reconnect the controller. YES Check if the voltage measured between Connector “RD3- ” (Black) linked to the Controller and “WH3- ”(White) is 110V ~ 125V? YES N(White) L (Black) L (Led) Check if the Controller wire is disconnected. Check if Terminal Block and Power Cord are connected (Check Plug ). - Does Power Cord N( Natural) line match to Terminal Center N(Natural) line? YES Replace controIler. 17 Test 2 Thermistor Test --- Measure with Power Off Caution Trouble Symptom Before measuring resistance, be sure to turn Power off, and do voltage discharge. (When discharging, contact the metal plug of Power cord with the Ground.) During Diagnostic Test, tE1 and tE2 Error occur. During operation, Heater would not turn off, or remains on. Difference between actual and sensed temperature is significant. Measurement Condition After turning Power off, measure the resistance. Take 6pin Connector from the Controller. Check if resistance is in the range of Table 1 when measuring 6pin connector Pin YES (Blue wire) and Pin (Red wire) connected to Controller. • Check if Control and 6Pin connector is properly connected. • Replace Controller. NO Check if resistance is in the range of Table 1 when measuring resistance between terminals after separating Harness From Thermistor assembly Connector. NO • Replace Thermistor. YES Check Harness-linking connector. Table 1. Resistance for Thermistor Temperature. Air TEMP.[°F (°C)] RES. [kΩ] Air TEMP.[°F (°C)] RES. [kΩ] Air TEMP.[°F (°C)] RES. [kΩ] 50°F (10°C) 18.0 90°F (32°C) 7.7 130°F (54°C) 2.9 60°F (16°C) 14.2 100°F (38°C) 6.2 140°F (60°C) 3.0 70°F (21°C) 11.7 110°F (43°C) 5.2 150°F (66°C) 2.5 80°F (27°C) 9.3 120°F (49°C) 4.3 160°F (71°C) 2.2 18 Test 3 Motor test Caution Before measuring resistance, be sure to turn Power off, and do voltage discharge. (When discharging, contact the metal plug of Power cord with earth line.) Trouble Symptom Drum will not rotate; No fan will function; No Heater will work. Measurement Condition Turn the Dryer’s Power Off, then measure resistance. Is resistance below 3Ω between Connector “WH3- ” (White wire) and “BL2- ” (Brown wire)? YES ※ Measure while door is closed. NO Is resistance below 3Ω between Connector “WH3- ” (White wire) and “BL2- ” (Yellow wire)? NO ※ Measure while door is closed. YES Is resistance below 3Ω between Connector “BL2- ” (Yellow wire) and “BL2- ” (Brown wire)? YES NO Is resistance below 1Ω between terminals NO of Outlet Thermostat attached to blower housing? • Replace Control. (Relay check) • Check Controller connector. • Check if Door flame presses door switch knob. • Check Door Switch. • Check Harness connection. • Replace Control. (Relay check) • Check Controller connector. • Replace Outlet • Thermostat. (Refer to ‘Component’) YES Idler Switch Lever Idler Switch Does Idle Switch attached to Motor Bracket operate Level by drum belt? (Not operating Lever is normal.) YES Is resistance below 1Ω between Idler Switch terminals? NO YES • Check Motor.(Refer to ‘Motor Diagram & Check’) • Check if Control Connector is contacted. 19 • Check Idler Assembly. • Drum Belt cuts off • Drum Belt takes off from • Motor Pulley. • Replace Idler Switch. Test 4 Moisture sensor Before measuring resistance, be sure to turn Power off, and do voltage discharge. (When discharging, contact the metal plug of Power cord with earth line.) Caution Trouble Symptom Degree of dryness does not match with Dry Level. Measurement Condition Turn the Dryer’s Power Off, then measure resistance. Take 6pin Connector from the Controller. Short with metal to 6pin connector’s Pin (BLUE wire) and Pin (ORANGE wire) to Controller. Metal or Wire When measuring resistance in Electric load, is resistance below 1Ω? NO YES Damping cloth When contacting cloth to Electro load: 1. Is the measurement within the range of Table 2 during Diagnostic Test? NO 2. Is the measurement within the range of Table 2 when measuring the voltage in 6pin connector’s Pin (BLUE wire) and Pin (ORANGE wire)? • Check Electro Load and • Harness Connector. • Check Harnesslinking connector. • Replace Control and Check. YES Normal Condition Table 2. IMC Ratio and Display Value / Voltage (IMC : Initial Moisture Content) IMC Display Value Voltage(DC) (between 6Pin terminal ) Remark 70% ~ 40% 50 ~ 130 2.5V Weight after removing from Washing Machine 40% ~ 20% 100 ~ 20 2.0V ~ 4.0V Damp Dry 10% ~ Dried clothes 205 ~ 240 Over 4.0V Completely-dried clothes 20 Test 5 Door switch test Caution Before measuring resistance, be sure to turn Power off, and do voltage discharge. (When discharging, contact the metal plug of Power cord with earth line.) Door Opening is not sensed.(During operation, when opening Door, Drum motor and Trouble Symptom Heater run continuously; Door Close is not sensed. (Drum motor will not operate. Display will flash at 0.5 second intervals.) Measurement Condition After turning Dryer Power Off, measure resistance. Measure while Door is closed. Check if resistance is below 250Ω between “WH3- ” (White wire) and “RD3- ”(Black wire) Connector WH3, RD3 after taking WH3, RD3 out from Controller. YES • Door switch Check (Refer to Component testing.) NO • Check Lamp. (When opening Lamp, replace then measure again.) • Door switch Check(Refer to Component testing.) NO Measure while Door is open. Check if resistance is 300~60Ω between “WH3- ” (White wire) and “RD3- ” (Black wire) Connector WH3, RD3 after taking WH3, RD3 out from Controller. YES Measure while Door is open. Check if resistance is below 1Ω between “BL2- ” YES (Yellow wire) and “WH3- ” (White wire) after taking Connector WH3, BL2 out from Controller. • Door switch Check (Refer to Component testing.) NO Measure while Door is closed. Check if resistance is below 1Ω between “BL2- ” NO (Yellow wire) and “WH3- ” (White wire) after taking Connector WH3, BL2 out from Controller. YES Check Controller. Check Harness-linking connector. 21 • Door switch Check (Refer to Component testing.) Test 6 Heater switch test - Electric Type Before measuring resistance, be sure to turn Power off, and do voltage discharge. (When discharging, contact the metal plug of Power cord with earth line.) Caution While operating, Heating will not work. Trouble Symptom Drying time takes longer. Measurement Condition After turning Power off, measure the resistance. 1. Is resistance between Heater terminal and below 18 ~ 22Ω? 2. Is resistance between Heater terminal and below 18 ~ 22Ω? 3. Is resistance between Heater terminal and below 9 ~ 11Ω? NO • Replace Heater. YES Check if the value of measured resistance is below 1Ω between terminal TH2 (Safety Thermostat). NO TH3 TH2 • Replace TH2 (Safety Thermostat). YES Check if the value of measured resistance is below NO 1Ω between terminal TH3 (HI-Limit Thermostat). • Replace TH3 (HI-Limit Thermostat). YES Check Motor. Check if the value of measured resistance is below 1Ω between terminal and at RUN condition. YES Check Controller. Check Harness-linking Connector. 22 NO • Check Motor and replace it. Test 7 GAS Valve test - Gas Type Caution When measuring power, be sure to wear insulated gloves, to avoid electric shock. While operating, Heating will not work. Trouble Symptom Drying time takes longer. Measurement Condition With dryer power on Power On & Start (Normal Cycle) NO Valve 1 When measuring Valve 1 voltage, More than AC 90V? NO • Check thermostat Hi limit Safety NO • Check Igniter & Frame detect YES • Check Gas connection or Gas supply YES • Change Valve YES Igniter operates? (after 1 min, Igniter becomes reddish) Igniter YES Valve 2 When measuring Valve 2 voltage, Value is more than AC 90V? (10 sec after Igniter off) NO When measuring terminal resistance on “Valve 1”, “Valve 2”, Value is more than1.5 ~ 2.5kΩ? (Measure after Off ) NO • Harness check • Controller change 23 10 ! CHANGE GAS SETTING (NATURAL GAS, PROPANE GAS) Warning After Natural Gas Setting, applying Propane Gas Orifice or wrong use of Natural Gas Orifice will result in fire. Conversion must be made by a qualified technician. Initially, Natural Gas mode is set. Propane Gas Orifice is on sale as a Service Part to authorized servicers only. STEP 1 : VALVE SETTING Full open “Change screw” Close “Change screw” STEP 2 : ORIFICE CHANGE Remove 2 screws. Disassemble the pipe assembly. Replace Natural Gas orifice with Propane Gas orifice. Gas type Orifice P/No Marking Natural Gas 4948EL4001B NCU Propane Gas 4948EL4002B PCU Shape Kit contents : Orifice (Dia. = 1.613mm, for Propane Gas) : Replace Label : Instruction sheet Orifice 24 GAS VALVE FLOW START KEY PUSH “VALVE 1” ON IGNITE ON IGNITE TEMPERATURE ABOUT 370”F NO YES FRAME DETECT OPEN IGNITE OFF “VALVE 2” ON GAS IGNITION NO FRAME DETECT CLOSE YES DRYING “VALVE 2” OFF GAS IGNITION GAS VALVE STRUCTURE START VALVE 1 ON IGNITER ON OFF FRAME DETECT CLOSE OPEN OFF ON VALVE 2 GAS IGNITION 25 11 DISASSEMBLY INSTRUCTIONS Disassemble and repair the unit only after pulling out power plug from the outlet. 1. Remove 3 screws on the rear Panel. 2. Pull the control panel forward. 3. Open the cover protect. 4. Disconnect connectors. 5. Remove 5 screws. 6. Disassemble the controller assembly. 26 1. Push backward using an opener and lift 7cm the top plate. 7cm 1. Open the top plate. 2. Open the door, Remove 2 screws. 3. Remove 2 screws form upper side. 4. Pull the Cover Cabinet. 5. Disconnect the door switch connector. 27 1. Open the top plate. 2. Remove Cover Cabinet. 3. Disconnect the door lamp and electro sensor connector. 4. Remove 4 screws. 5. Disassemble the Tub Drum [Front]. 1. Open the top plate. -1 -1 2. Remove the Cover Cabinet and Tub drum [front]. -2 3. Disengage belt from motor and idler pulleys. 4. Carefully remove Drum out through front of dryer. 1. Open the door. 2. Remove the screw holding the drum lamp shield in place. 3. Slide the shield up and remove. 4. Remove the bulb and replace with a 15 watt, 120 volt candelabra-base bulb. 5. Replace the lamp shield and screw. 28 1. Remove screw & exhaust duct. 2. Detach and remove the bottom, left or right side PORTION “A” knockout as desired. 3. Reconnect the new duct[11 in(28cm)] to the DUCT TAPE blower housing, and attach the duct to the base. 4. Pre-assemble 4" elbow with 4" duct. Wrap duct tape around joint. DUCT TAPE 5. Insert duct assembly, elbow first, through the side DUCT TAPE opening and connect the elbow to the dryer internal duct. 29 1. Remove the filter. 2. Remove 3 screws. 3. Pull the grill. 4. Disconnect electro sensor. 1. Open the top plate. 2. Remove the Cover Cabinet and Tub Drum [Front]. 3. Remove the Drum assembly. 4. Remove 2 screws and cover(Air guide). 5. Remove the bolt and washer. 6. Pull the fan. 7. Disconnect the motor clamp and motor. 1. Open the top plate. 2. Remove the Cover Cabinet and Tub Drum [Front]. 3. Remove the Drum assembly. 4. Remove 7 screws. 5. Pull the Tub Drum [Rear] towards the front. 30 1. Open the top plate. 2. Remove the Cover Cabinet. 3. Remove filter and 2 screws. 4. Pull the air duct towards the front. 1. Open the top plate. 2. Remove the Cover Cabinet and Tub Drum [Front]. 3. Remove the Drum assembly and Tub Drum [Rear]. 4. Disconnect Air duct from the Tub Drum [Front]. 5. Remove the roller from the Tub Drum [Front] and Tub Drum [Rear]. 31 12 EXPLODED VIEW 12-1. Control Panel & Plate Assembly A130 A150 A120 A140 A110 A550 A570 A600 A215 A210 A211 32 12-2. Cabinet & Door Assembly A700 A800 A212 A300 A330 A320 A305 A340 A500 A310 A535 A520 A510 A430 A540 A400 A450 A420 33 A410 A460 12-3-1. Drum & Motor Assembly : Electric Type F200 K400 K120 K140 K100 K130 K250 K251 K310 K330 K320 K340 K222 K620 K221 K230 K210 K250 K360 K350 K610 K550 K251 K560 K240 K530 F140 K540 K510 K651 K520 K640 F130 K650 F110 K600 F120 34 12-3-2. Drum & Motor Assembly : Gas type F200 K400 K120 K140 K100 K130 K250 K251 K310 K330 K320 K340 K222 K620 K221 K230 K210 K250 K360 K350 K610 K550 K251 K560 K240 K530 K510 K540 M150 M240 K651 K520 K640 M220 K650 M141 M160 K600 M171 M170 M210 M140 M230 M110 M190 M250 M180 M181 35 ※ M171 : Propane Gas orifice M170 : Natural Gas orifice MAY 2005 PRINTED IN KOREA P/No.:3828EL3001C
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