White Rodgers 1F92W-51 manual Why can’t I program the thermostat in the Auto mode?

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4.What happens if the electricity goes off or is manually shut off?

If you have not installed a 9 volt alkaline battery, the display will go blank and the program will be lost in approximately one minute. When electric-

ity is restored, the thermostat will maintain a heating temperature of 64°F and a cooling tem- perature of 82°F until you reenter your program. Setpoint temperature will not be displayed.

If a fresh 9 volt Energizer® alkaline battery is installed, the program will be maintained for about one week with no 24 VAC power present to the thermostat. See OPERATING YOUR THERMOSTAT.

5.Why can’t I program the thermostat in the AUTO mode?

The thermostat can only be programmed in the HEAT and COOL modes. See PROGRAMMING YOUR THERMOSTAT.

6. What can cause the thermostat display to freeze or go blank?

A completely blank display may indicate that power has been lost to the thermostat and the backup battery is also dead. However, if there is power to the thermostat and the display is blank or frozen, static discharge is probably the cause.

During periods of low humidity (especially during cold weather), you may feel or see a spark discharge when you touch the thermostat. This may cause the program to be lost or the thermo- stat to display incorrectly. To correct this, remove the thermostat from the wall and disconnect the battery. Wait about one minute, then re-connect the battery. The thermostat will revert to the factory preset program until you re-program the thermostat. If you don’t want to re-program the

thermostat immediately, press SYSTEM until

HEAT-OFF-COOL-AUTO

OFF is displayed and replace the thermostat on

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Contents 1F92W-51 About Your New Thermostat Your NEW THERMOSTAT’S THERMOSTAT’S Specifications Installing Your ThermostatOperating Your Thermostat Programming YourYour NEW THERMOSTAT’S Features Precautions Accessories THERMOSTAT’S SpecificationsElectrical Data Thermal Data Staging DataInstalling Your Thermostat NEW InstallationRoute Wires to Location Routing thermostat wires Wire Identification Labels Replacement InstallationRemove OLD Thermostat WallPage Attach Subbase to Wall Subbase Typical wiring diagram for single transformer systems Depending on System Require Heat Pump System Attach Thermostat to Subbase USETo Turn Thermostat OFF be System Configuration SET Option SwitchesTwo Compressor Split System Switch #1 on Switch #2 on FAN Operation Check Thermostat OperationHeating System Operation Ming Your ThermostatCooling System Operation Lockout Bypass Option Compressor Short Term Cycle ProtectionPress Use System to turn the thermostat OFF Operating Your ThermostatBack of the Thermostat Body Parts of the ThermostatAting Features Removing thermostat from the wall to re- place the batteryUse To turn thermostat OFF beforeSystem Time SET View Hold Used with Thermostat Buttons and LightsSystem Time SET View Hold Operating Features Automatic Changeover on Automatic Changeover OFF TWO Hour Temperature OverrideTo adjust Heat anticipation, press Convertibility Press TimeTo increase the cycle time. If the heat Compressor Short Cycle Protec LOW Battery Indicator The word BATCool Cool or HeatUntil FAN Planning for Your Needs Programming Your ThermostatYour Home Your needs, simply press Factory preset programEntering Your Program Programming. be Sure to PressTurn Thermostat OFF Before REATTACH- ING to Subbase Weekday 5 DAY Weekend 2 DAY Heating/Cooling Schedule PlanMOR Heat SamplePress and hold either Set Current Time and DayUntil you Enter Heating ProgramWant to stop programming at any time, simply press Fore Reattaching to Subbase Enter Cooling ProgramCheck Your Programming Until you return to the point where you Questions and AnswersHow can I permanently change a part of my program? Gramming Your ThermostatWhat can cause the thermostat display to freeze or go blank? Why can’t I program the thermostat in the Auto mode?Mostat ING Your ThermostatErating Your Thermostat Why is the system turning on and off so frequently seldom? Maintains programming, press System until Page Page Part No -5414A