White Rodgers 1F90W-71 manual Erating Your Thermostat, Gramming Your Thermostat

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programming, press PRGMVIEW until you return

to the point where you stopped program- ming. Then you may continue to program the thermostat normally. If you want to stop

RUN

programming at this point, press PRGM to

start the normal program function. See

PROGRAMMING YOUR THERMOSTAT.

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

If you have not installed 3 "AA" alkaline batteries, the display will go blank and the program will be lost in approximately one minute. When electricity is restored, the clock will reset itself to 12:00 PM (noon) and

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

If fresh "AA" Energizer® alkaline batteries are installed, the program will be main- tained for about one year with no 24vAC power present to the thermostat. See OP-

ERATING 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 PRO-

GRAMMING 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. How- ever, if there is power to the thermostat and the display is blank or frozen, static dis- charge is probably the cause.

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Contents 1F90W-71 About Your New Thermostat Questions and Answers Your NEW Thermostats Programming YourOperating Your Thermostat Your NEW THERMOSTAT’S Features Operating Your Thermostat Parts of the Thermostat Back of The Thermostat BodyBack of Thermostat Body Display System Time SET Thermostat Buttons Used withButtons to 11 12 Operating Features EMR on TWO Hour Temperature Over Automatic ChangeoverAdvance Program KEY Press To change the thermostat to the nextConvertibility Press Time Use Adjust anticipation. PressAt the same time again To returnHEAT-OFF-COOL-AUTO Limited Temperature Range Total Keypad LockoutProgramming Your Thermostat Your Home Period Time Temp Entering Your Program Heating/Cooling Schedule Plan Sample Until Set Current Time and DayPress and hold either Enter Heating ProgramPrgm to resume program operation Enter Cooling Program Check Your Programming How can I permanently change a part of my program? Ming Your ThermostatProgramming Your Thermostat Why can’t I program the thermostat in the Auto mode? Erating Your ThermostatGramming Your Thermostat Thermostat immediately, press Display is flashing BATTERY. What does this mean? Programming Your THERMO- Stat Why is the system turning on and off so frequently seldom?See Operating Your THERMO- Stat Ating Your ThermostatAny time you wish to turn your system off Simply press Is displayed, put the thermostat back on Part No -5088A