White Rodgers 1F95 1271 Operating Instructions 37 6426
1F95-1271 to the manual 67f3641c-1e7c-47ac-b4d8-10735c8a1362
2015-01-05
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90 Series Blue Universal Thermostat with Automatic Heat/Cool Changeover Option Single Stage, Multi-Stage, Heat Pump Installation and Operating Instructions for Model: Save these instructions for future use! Model FAILURE TO READ AND FOLLOW ALL INSTRUCTIONS CAREFULLY BEFORE INSTALLING OR OPERATING THIS CONTROL COULD CAUSE PERSONAL INJURY AND/OR PROPERTY DAMAGE. 1F95-1271 Programming Choices Non-Programmable 5/1/1 Day 7 Day APPLICATIONS 1F95-1271 Touchscreen Thermostat THERMOSTAT APPLICATION GUIDE Description Heat Pump (No Aux. or Emergency Heat) Yes Heat Pump (with Aux. or Emergency Heat) Yes Systems with up to 3 Stages Heat, 2 Stages Cool Yes Heat Only Systems Yes Millivolt Heat Only Systems – Floor or Wall Furnaces Yes Cool Only Systems Yes Gas or Oil Heat Yes Electric Furnace Yes Hydronic (Hot Water) Zone Heat – 2 Wires Yes Hydronic (Hot Water) Zone Heat – 3 Wires No SPECIFICATIONS Electrical Rating: Battery Power . . . . . . . . . . . . . . . . . . . . . . . . . Input-Hardwire . . . . . . . . . . . . . . . . . . . . . . . . Terminal Load . . . . . . . . . . . . . . . . . . . . . . . . . . . . Setpoint Range . . . . . . . . . . . . . . . . . . . . . . . . . . . Differential (Single Stage) . . . . . . . . . . . . . . . . . . . Differential (Multi-Stage) . . . . . . . . . . . . . . . . . . . . Differential (Heat Pump) . . . . . . . . . . . . . . . . . . . . Operating Ambient . . . . . . . . . . . . . . . . . . . . . . . . . Operating Humidity . . . . . . . . . . . . . . . . . . . . . . . . Shipping Temperature Range . . . . . . . . . . . . . . . . Dimensions Thermostat . . . . . . . . . . . . . . . . . . . . . ! CAUTION To prevent electrical shock and/or equipment damage, disconnect electric power to system at main fuse or circuit breaker box until installation is complete. Index Installation Wiring Connections Thermostat Quick Reference Installer Configuration Menu Operating Your Thermostat Programming Troubleshooting Page 2 2 3 4 6 6 8 mV to 30 VAC, NEC Class II, 50/60 Hz or DC 20 to 30 VAC 1.5 A per terminal, 2.5A maximum all terminals combined 45 to 99°F (7 to 32°C) Heat 0.6°F; Cool 1.2°F Heat 0.6°F; Cool 1.2°F Heat 1.2°F; Cool 1.5°F 32° to +105°F (0 to +41°C) 90% non-condensing max. -4 to +150°F (-20 to +65°C) 4.6"H x 5.9"W x 1.2"D ATTENTION: MERCURY NOTICE This product does not contain mercury. However, this product may replace a product that contains mercury. Mercury and products containing mercury must not be discarded in household trash. Do not touch any spilled mercury. Wearing non-absorbent gloves, clean up any spilled mercury and place in a sealed container. For proper disposal of a product containing mercury or a sealed container of spilled mercury, place it in a suitable shipping container and send it to: White-Rodgers 2895 Harrison Street Batesville, AR 72501 PART NO. 37-6735A www.white-rodgers.com 0544 INSTALLATION ! WARNING Thermostat installation and all components of the control system shall conform to Class II circuits per the NEC code. Remove Old Thermostat A standard heat/cool thermostat consists of three basic parts: 1. The cover, which may be either a snap-on or hinge type. 2. The base, which is removed by loosening all captive screws. 3. The switching subbase, which is removed by unscrewing the mounting screws that hold it on the wall or adapter plate. Before removing wires from old thermostat, label each wire with the terminal designation from which it was attached. Disconnect the wires from the old thermostat one at a time. Do not let wires fall back into the wall. Installing New Thermostat 1. Pull the thermostat body off the thermostat base. Forcing or prying on the thermostat will cause damage to the unit. 2. Place base over hole in wall and mark mounting hole locations on wall using base as a template. 3. Move base out of the way. Drill mounting holes. If you are using existing mounting holes and the holes drilled are too large and do not allow you to tighten base snugly, use plastic screw anchors to secure the base. 4. Fasten base snugly to wall using mounting holes shown in Figure 1 and two mounting screws. Leveling is for appearance only and will not affect thermostat operation. 5. Connect wires to terminal block on base using appropriate wiring schematic (see diagram sheet 37-6740A). 6. Push excess wire into wall and plug hole with a fire resistant material (such as fiberglass insulation) to prevent drafts from affecting thermostat operation. 7. Carefully line the thermostat up with the base and snap into place. Battery Location 2 "AA" alkaline batteries are included in the thermostat at the factory with a battery tag to prevent power drainage. Remove the battery tag to engage the batteries. To replace batteries, set system to OFF, remove thermostat from wall and install the batteries in the rear along the top of the thermostat (see Figure 1). Figure 1 – Thermostat base and rear view of thermostat Mounting Hole W/E W2 Mounting Hole Y2 Place Level across Mounting Tabs (for appearance only) Place Level across Mounting Tabs (for appearance only) 2 "AA" Batteries WIRING CONNECTIONS Refer to equipment manufacturers' instructions for specific system wiring information. After wiring, see CONFIGURATION section for proper thermostat configuration. For wiring diagrams, see 37-6740A. Wiring diagrams shown are for typical systems and describe the thermostat terminal functions. TERMINAL DESIGNATION DESCRIPTIONS Terminal Designation Description L . . . . . . . . . . . . . . . . Heat pump malfunction indicator for systems with malfunction connection O . . . . . . . . . . . . . . . . Changeover valve for heat pump energized constantly in cooling B . . . . . . . . . . . . . . . . Changeover valve for heat pump energized constantly in heating Y . . . . . . . . . . . . . . . . Compressor Relay Y2 . . . . . . . . . . . . . . . 2nd Stage Compressor W/E . . . . . . . . . . . . . . . Heat Relay/Emergency Heat Relay (Stage 1) W2 . . . . . . . . . . . . . . . 2nd Stage Heat (3rd Stage Heat in HP2) G . . . . . . . . . . . . . . . . Fan Relay RH . . . . . . . . . . . . . . . Power for Heating RC . . . . . . . . . . . . . . . Power for Cooling C . . . . . . . . . . . . . . . . Common wire from secondary side of cooling system transformer or heat only system transformer 2 THERMOSTAT QUICK REFERENCE Home Screen Description Figure 2 – Home Screen Display Time and Day Room Temperature and Setting Temperature (flashes when compressor is in 5 minute lockout) System button for selecting Heat/Off/Cool or Auto (Heat/Cool) Temperature Up/Down Displays indicating the current power level of the 2 "AA" batteries. When the batteries become low, "Change" will appear with the . The batteries should be replaced at this time. Fan (Auto/On) Stage 1 Indicates when thermostat is calling for Heat or Cool Menu for Cleaning, Programming and Setting Time Figure 3 – Programming & Configuration Items 10 11 Programming and Configuration Items 1 Displays and "Keypad Lockout" when in keypad lockout mode. Displays and "Temperature Limit" and "Keypad Lockout" when limited range is activated and locked. Displays only "Temperature Limit" when limited range is activated. 2 Indicates period of day being programmed. 3 RUN SCHEDULE (run program) button. 4 SET TIME button or HOLD temperature button. 5 Displays "Change Filter" when the system has run for the programmed filter time period as a reminder to change or clean your filter. Displays "Humidifier Pad" when the system has run for the programmed filter time period as a reminder to change or clean your humidifier pad. 6 COPY button or INSTALLER CONFIG button. 7 CLEAN DISPLAY button allows 30 seconds to wipe off the display or ADVANCE DAY button for programming. 8 Used in programming to set time and in configuration menu to change selections. 9 "Hold Until" indicates the time when a temporary hold period will end. 10 "Hours" and "Days" displays during steps in installer configuration. 9 1 8 14 2 13 12 3 7 6 5 4 11 The words "Hold At" are displayed when the thermostat is in the HOLD mode. "Temporary Hold At" is displayed when the thermostat is in a temporary HOLD mode. 12 "Call For Service" indicates a fault in the heating/ cooling system. It does not indicate a fault in the thermostat. 13 "Stage 1" indicates when heating or cooling stage is energized. "+2" also indicates when a second stage is energized. 14 "Copy" indicates the copy program feature is being used during programming. 3 INSTALLER/CONFIGURATION MENU To enter the menu: Press the Menu button. Press and hold for 5 seconds the Installer Config button. This displays menu to advance to the next menu item or to return to a previous menu item. Press or item #1 in the table below. Press to change a menu item. NonMenu Reference Program- Program- Press mable mable Button Number Displayed (Factory Default) CONFIGURATION MENU Press or to select from listed options Comments 1 1 1 MS 2 HP 1, HP 2, SS 1 2 2 2 (GAS) ELE 3 4 5 3 4 5 3 * NA 4 6 7 8 9 6 7 8 9 * NA 5 6 7 10 11 12 10 11 12 8 9 10 13 14 15 13 14 15 11 12 13 16 16 14 17 17 15 18 18 16 19 19 17 20 20 18 21 21 19 On 22 22 20 000 Change Filter (OFF) 200 hours Change Humidifier (OFF) 100 hours Selects Multi-Stage (MS 2, No Heat Pump), Heat Pump 1 (HP 1, 1 compressor), Heat Pump 2 (HP 2, 2 compressor or 2 speed compressor), or Single Stage. GAS setting: furnace controls blower. ELE setting: thermostat controls blower. Days (7) 5, 0 Selects programming option. PS (4) 2 Selects programming steps per day. Cool Off Cool Off Heat (Emer), Selects system switch configuration for Heat and Cool with Heat Auto Off Heat, Cool Off Auto changeover, Heat & Cool, Heat Only or Cool Only. E (On) OFF Selects Energy Management Recovery on or off. Cr Heat (FA) SL Selects Heat cycle rate Fast (FA) or Slow (SL). Cr Cool (FA) SL Selects Cool cycle rate Fast (FA) or Slow (SL). Cr Emer (FA) SL If HP 1 or HP 2 is selected for item #1, selects Emer cycle rate. CL (OFF) On Selects Compressor lockout ON or OFF. dL (On) OFF Selects display light on or off. 0 1, 2, 3, 4 HI Selects temperature display adjustment 1, 2, 3 or 4 degrees (Room temp) 1, 2, 3, 4 LO high or low. °F °C Selects Fahrenheit or Celsius temperature display. b (On) OFF Selects beeper on or off. Heat (99) 62-99 Selects highest Heat setpoint temperature. Can select 62° to 99°F. Cool (45) 45-82 Selects lowest Cool setpoint temperature. Can select 45° to 82°F. Keypad L, P Selects keypad lockout full or partial to be set. lockout (L) Temperature Limit Activates temperature limit ranges. Keypad On Selects keypad lockout on or off. lockout (OFF) 000 000 to 999 Selects keypad lockout combination number if lockout is on. 000 is not a valid selection. FA Heat (On) OFF If HP or MS selected in item 1, selects Heat Fast second stage On or Off. FA Cool (On) OFF If HP or MS selected in item 1, selects Cool Fast second stage On or Off. Select change filter alert time period. 25 to 1975 hours On When set ON, selects time in 25 hour increments. Selects change humidifier pad alert time period 25 to 1975 hours When set ON, selects time in 25 hour increments. * Not Applicable 1) This control can be configured for: MS2 – Multi-Stage System (no heat pump) HP1 – Heat Pump with one stage of compressor HP2 – Heat Pump with two stage compressor or two compressor system, Gas or Electric backup SS1 – Single Stage System 2) GAS or Electric (ELE) fan operation. If the heating system requires the thermostat to energize the fan, select ELE. Select GAS if the heating system energizes the fan on a call for heat. Note: Resetting the thermostat switches the option to ELE. 4 3) This control can be configured for 7 independent day or 5/1/1 day programming or non-programmable mode. The display indicates "7 Days" as default. The programs per week can be toggled to "5 Days" or "0 Days" by pressing or keys. A selection of 0 Days for non-programthe mable will eliminate the need for EMR, and that step in the menu will be skipped. 4) Programmable Periods – This control can be configured for 4 or 2 programmable periods per day. The display indicates "4 PS" in the display as default. The programor mable periods can be toggled by pressing the keys. INSTALLER/CONFIGURATION MENU 5) System Switch Configuration – This thermostat is configured for Heat and Cool with Auto changeover (SYSTEM switch with Cool Off Heat Auto) default. It can also be configured for Heat and Cool (Cool Off Heat), Heat only (Off Heat), and Cool only (Cool Off). 6) Energy Management Recovery – (this step is skipped if configured to be non-programmable). Energy Management Recovery (E) On causes the thermostat to start heating or cooling early to make the building temperature reach the program setpoint at the time you specify. Heating will start 5 minutes early for every 1° of temperature required to reach setpoint. Example: If E On is selected and have your heating programmed to 65° at night and 70° at 7 AM. If the building temperature is 65°, the difference between 65° and 70° is 5°. Allowing 5 minutes per degree, the thermostat setpoint will change to 70° at 6:35 AM. Cooling allows more time per degree, because it takes longer to reach temperature. 7, 8 & 9) Cycle Rate Selection – The factory default setting for Heat is fast cycle (FA Cr), which cycles heat at approximately 0.6°F. If you prefer slow cycle, press the or key to change to SL. Heat will cycle at approximately 1.2°F. For Cool the default setting is fast cycle (FA Cr), which cycles cool at approximately 1.2°F. If you or key to change to SL, prefer slow cycle, press the cool will cycle at approximately 1.7°F. Cycle rate selection for EMER and Aux is only for HP 1 or HP 2 systems. 10) Select Compressor Lockout CL OFF or ON – Selecting CL ON will cause the thermostat to wait 5 minutes between cooling cycles. This is intended to help protect the compressor from short cycling. Some newer compressors already have a time delay built in and do not require this feature. Your compressor manufacturer can tell you if the lockout feature is already present in their system. When the thermostat compressor time delay occurs, it will flash the setpoint for up to five minutes. 11) Select Backlight Display – The display backlight improves display contrast in low lighting conditions. When the C terminal is powered, selecting backlight (dL ON) will turn the light on continuously. Selecting backlight OFF will turn the light on momentarily after any key is pressed. When the C terminal is not powered, this selection has no effect. 12) Select Temperature Display Adjustment 4 LO to 4 HI Allows you to adjust the room temperature display up to 4° higher or lower. Your thermostat was accurately calibrated at the factory, but you have the option to change the display temperature to match your previous thermostat. The current or adjusted room temperature will be displayed on the left side of the display. 13) Select F° or C° Readout – Changes the display readout to Centigrade or Fahrenheit as required. 14) Select Audio Prompting (Beeper) On or Off – Default setting is On (On b) if you wish to turn off the beeper select Off b. 15) Heat Temperature Limit Range – This feature adjusts the highest setpoint temperature for heat. The default setting is 99°F. It can be changed between 62°F and or key. The "temperature 98°F by pressing the limit" icon will be displayed to the left of your setpoint temperature when using this feature. The "temperature limit" icon will flash if an attempt is made to adjust the temperature beyond the range selected. 16) Cool Temperature Limit Range – This feature adjusts the lowest setpoint temperature for cool. The default setting is 45°F. It can be changed between 46°F and or key. The "temperature 82°F by pressing the limit" icon will be displayed to the left of your setpoint temperature when using this feature. The "temperature limit" icon will flash if an attempt is made to adjust the temperature beyond the range selected. 17) Keypad Lockout – This step allows you to select the type of lockout or limited range security required. If no to lockout or limited range security is required, press advance the menu. Three security settings are available in this menu item. or keys to select the lockout desired. Use the Lockout selections are: "Keypad Lockout and L" = Total Lockout. Total Lockout locks all keys. "Keypad Lockout and P" = Partial Lockout. Partial Lockor keys to operate within your out allows only the set temperature limits. "Temperature Limit/Keypad Lockout" prevents changing the temperature limits in the Configuration Menu. 18) Keypad Lockout Combination Number Selection Display will read "OFF" "Keypad Lockout". Skip this step and continue through the configuration menu items 19 thru 22 if you require an Air Filter Change out indicator or Humidifier Pad Change out indicator by button to advance. pressing the Return to this point when you are ready to start your selected lock-out and continue by: or keys to select ON. Pressing Press . Display will read "000". or keys to select your keypad lockout Pressing combination number. Note: "000" is not a valid combination choice. Record the number you select for future use. Press to exit the menu. The security feature you select will start in 10 seconds. The system button will remain active for 10 seconds to allow setting Heat, Off, Cool or Auto. 19 & 20) Select Fast Second Stage ON or OFF – In the run mode, with the fast Heat feature enabled (FA Heat On), if the Heat setpoint temperature is manually raised by 3°F the (2°C) or more above the actual temperature using second stage will energize immediately. With FA OFF, second stage will not energize until the setpoint temperature is 1°F or more above actual temperature for more than ten minutes. The Fast Cool feature (FA Cool) provides the same controls when the setpoint temperature is lowered. 21) Select Filter Replacement Run Time – The thermostat will display "Change Filter" after a set time of blower operation. This is a reminder to change or clean your air filter. This time can be set from 25 to 1975 hours in 25 hour increments. A selection of OFF will cancel this feature. When "Change Filter" is displayed, you can clear it by pressing Clean Display. In a typical application, 200 hours of run time is approximately 30 days. 22) Select Humidifier Pad Replacement Run Time – The thermostat will display "Humidifier Pad" after a set time of heating operation. This is a reminder to change or clean your humidifier pad. This time can be set from 25 to 1975 hours in 25 hour increments. A selection of OFF will cancel this feature. When "Humidifier Pad" is displayed, you can clear it by pressing Clean Display. Check with your humidifier manufacturer for a recommended maintenance interval. 5 OPERATING YOUR THERMOSTAT Choose the Fan Setting (Auto or On) Set the FAN Switch to Auto or On. Fan Auto is the most commonly selected setting and runs the fan only when the heating or cooling system is on. Fan On runs the fan continuously for increased air circulation or to allow additional air cleaning. Choose the System Setting (Heat, Off, Cool, Auto) Press the SYSTEM button to select: Heat: Thermostat controls only the heating system. Off: Heating and Cooling systems are off. Cool: Thermostat controls only the cooling system. Auto: Auto Changeover is used in areas where both heating and cooling may be required on the same day. AUTO allows the thermostat to automatically select heating or cooling depending on the indoor temperature and the selected heat and cool temperatures. When using AUTO, be sure to set the Cooling temperatures more than 1° Fahrenheit higher than the heating temperature. Manual Operation for Non-Programmable Thermostats Press the SYSTEM button to select Heat or Cool and use or buttons to adjust the temperature to your the desired setting. After selecting your desired settings you can also press the SYSTEM button to select AUTO to allow the thermostat to automatically change between Heat and Cool. IMPORTANT! Manual Operation (Bypassing the Program) Programmable Thermostats Press or and the HOLD button and adjust the temperature wherever you like. This will override the program. The HOLD feature bypasses the program and allows you to adjust the temperature manually, as needed. Whatever temperature you set in HOLD will be maintained 24 hours a day, until you manually change the temperature or press Run Schedule to cancel HOLD and resume the programmed schedule. Program Override (Temporary Override) Press or buttons to adjust the temperature. This will override the temperature setting for a (default) four hour override period. The override period can be shortened by or lengthened by pressing . Program Override pressing period can range from 15 minutes to 7 days. Example: If you turn up the heat during the morning program, it will be automatically lowered later, when the temporary hold period ends. To cancel the temporary setting at any time and return to the program, press Run Schedule. If the SYSTEM button is pressed to select AUTO the thermostat will change to Heat or Cool, whichever ran last. If it switches to heat but you want cool, or it changes to cool or buttons simultabut you want heat, press both neously to change to the other mode. PROGRAMMING Set Current Time and Day Fill in the blank schedule on the next page then: 1) Press Menu and then Set Time button once. The display will show the hour only. or key until you reach 2) Press and hold either the the correct hour and AM/PM designation (AM begins at midnight, PM begins at noon). 3) Press Set Time once again. The display window will show the minutes only. or key until you reach 4) Press and hold either the the correct minutes. 5) Press Set Time once again. The display will show the day of the week. or key until you reach the current day 6) Press the of the week. 7) Press Run Schedule once. The display will show the correct time and room temperature alternately. Enter the Heating Program Programming Tip: Copy Button You may copy any daily program to another day or group of days by pressing the Copy button. In 7 day programming mode when the Copy button is pressed, the other 6 days of the week will flash. To copy the current program into the remaining six days, simply press the Copy button again. To copy the current program to another day of the week, press Advance Day to select the day and press Copy to paste the program. In 5/1/1 day programming mode the copy function is similar. The weekday (Mon-Fri) program can be copied to Sat and Sun (both flashing) or use Advance Day to choose Sat or Sun and press the Copy button to paste the program. 6 1) Press the Menu button and then press Set Schedule. Press SYSTEM button to select either "Heat" or "Cool" in the system switch area indicating the active mode being programmed. You can switch to the other mode by pressing the system switch at any time. 2) The top of the display will show the day(s) being programmed. The time and set at temperature are also displayed. "Morning" will also be displayed to indicate the period. or key to change the temperature to your 3) Press selected temperature for the 1st heating period (Morning). 4) Press or key to adjust the start time for period. 5) The time will change in 15 minute increments. 6) After you have set the time and the temperature for the period to begin, press Set Schedule to advance to the next program period. 7) Repeat steps 2 through 6 until all of the program times and temperatures are set for all program periods on that day. 8) Press "Advance Day" to change to the next day and repeat steps 2 through 8. 9) When programming is complete and all of the times and temperatures match your desired heating schedule, press Run Schedule. The thermostat will now run your program. Enter the Cooling Program 1) Press the SYSTEM button until the Cool icon appears. 2) Follow Enter Heating Program instructions for entering cooling times and temperatures. PROGRAMMING Energy Saving Factory Pre-Program The 1F95-1271 thermostats are programmed with the energy saving settings shown in the table below for all days of the week. If this program suits your needs, simply set the thermostat clock and press the RUN button. The table below shows the factory set heating and cooling schedule for all days of the week. * Wake Up (Morning) Heating Program Cooling Program Leave For Work (Day) * Return Home (Evening) Go To Bed (Night) 6:00 AM 70°F 8:00 AM 62°F 5:00 PM 70°F 10:00 PM 62°F 6:00 AM 78°F 8:00 AM 85°F 5:00 PM 78°F 10:00 PM 82°F * You can eliminate these two program periods in the configuration menu (reference #3) if the building is occupied all day. Day will change to 6:00 am and can be programmed as required. Planning Your Program – Important The Heating and Cooling Program schedules below allow you to pencil in your own program times and temperatures. The 1F95-1271 comes configured for 7 day programming and can also be configured for 5+1+1 programming (see configuration section). Factory settings are listed on Monday, Saturday and Sunday. If you are re-programming a 5+1+1 day schedule, pencil in your own times and temperatures directly below the factory times and temperatures. If you are re-programming a 7 day fill in all lines with the times and temperatures you want. Keep the following guidelines in mind when planning your program. • In Heating, lower temperatures will save energy. • In Cooling, higher temperatures will save energy. • If you plan on using Auto Changeover, do not program the heating higher than the cooling. Worksheet for Re-Programming 5+1+1 and 7 Day Program Heating Program Wake Up (Morning) Leave For Work (Day) Return Home (Evening) Go To Bed (Night) 6:00 AM 70°F 8:00 AM 62°F 5:00 PM 70°F 10:00 PM 62°F SAT 6:00 AM 70°F 8:00 AM 62°F 5:00 PM 70°F 10:00 PM 62°F SUN 6:00 AM 70°F 8:00 AM 62°F 5:00 PM 70°F 10:00 PM 62°F MON TUE WED THU FRI Cooling Program Wake Up (Morning) Leave For Work (Day) Return Home (Evening) Go To Bed (Night) 6:00 AM 78°F 8:00 AM 85°F 5:00 PM 78°F 10:00 PM 82°F SAT 6:00 AM 78°F 8:00 AM 85°F 5:00 PM 78°F 10:00 PM 82°F SUN 6:00 AM 78°F 8:00 AM 85°F 5:00 PM 78°F 10:00 PM 82°F MON TUE WED THU FRI 7 TROUBLESHOOTING Reset Operation Note: When thermostat is reset, installer configuration menu settings and programming will reset to factory settings. If a voltage spike or static discharge blanks out the display or causes erratic thermostat operation, you can reset the thermostat by removing the wires from terminals R and C (do not short them together) and removing batteries for 2 minutes. After resetting the thermostat, replace the wires and batteries. If the thermostat has been reset and still does not function correctly contact your heating/cooling service person or place of purchase. Note: Be sure to review the installer configuration menu settings. To reset the programming, clock and configuration settings, press and and the SYSTEM button simultaneously. The thermostat should go blank and then all segments will be displayed momentarily. Symptom Possible Cause Corrective Action No Heat/No Cool/No Fan (common problems) 1. Blown fuse or tripped circuit breaker. 2. Furnace power switch to OFF. 3. Furnace blower compartment door or panel loose or not properly installed. 4. Loose connection to thermostat or system. Replace fuse or reset breaker. Turn switch to ON. Replace door panel in proper position to engage safety interlock or door switch. Tighten connections. No Heat 1. Pilot light not lit. 2. Furnace Lock-Out Condition. Heat may also be intermittent. Re-light pilot. Many furnaces have safety devices that shut down when a lock-out condition occurs. If the heat works intermittently contact the furnace manufacturer or local HVAC service person for assistance. Diagnostic: Set SYSTEM Switch to HEAT and raise the setpoint above room temperature. Within a few seconds the thermostat should make a soft click sound. This sound usually indicates the thermostat is operating properly. If the thermostat does not click, try the reset operation listed above. If the thermostat does not click after being reset contact your heating and cooling service person or place of purchase for a replacement. If the thermostat clicks, contact the furnace manufacturer or a HVAC service person to verify the heating is operating correctly. 3. Heating system requires service or thermostat requires replacement. No Cool 1. Cooling system requires service or thermostat requires replacement. Same as diagnostic for No Heat condition except set the thermostat to COOL and lower the setpoint below the room temperature. There may be up to a five minute delay before the thermostat clicks in Cooling. Heat, Cool or Fan Runs Constantly 1. Possible short in wiring. 2. Possible short in thermostat. 3. Possible short in heat/cool/fan system. 4. FAN Switch set to Fan ON. Check each wire connection to verify they are not shorted or touching together. No bare wire should stick out from under terminal block. Try resetting the thermostat as described above. If the condition persists the manufacturer of your system or service person can instruct you on how to test the Heat/Cool system for correct operation. If the system operates correctly, replace the thermostat. Thermostat Setting & Thermostat Thermometer Disagree 1. Thermostat thermometer setting requires adjustment. The thermometer can be adjusted +/- 4 degrees. See Temperature Display Adjustment in the Configuration Menu section. Furnace (Air Conditioner) Cycles Too Fast or Too Slow (narrow or wide temperature swing) 1. The location of the thermostat and/or the size of the Heating System may be influencing the cycle rate. Digital thermostats provide precise control and cycle faster than older mechanical models. The system turns on and off more frequently but runs for a shorter time so there is no increase in energy use. If you would like an increased cycle time, choose SL for slow cycle in the Configuration menu, step 6 (heat) or 7 (cool). If an acceptable cycle rate is not achieved, contact a local HVAC service person for additional suggestions. Forgot Keypad Lockout Code Press the menu button (button will disappear) and hold in for 20 seconds. This unlocks the thermostat. HOMEOWNER HELP LINE: 1-800-284-2925 White-Rodgers is a division of Emerson Electric Co. The Emerson logo is a trademark and service mark of Emerson Electric Co. St. Louis, Missouri www.white-rodgers.com
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