White Rodgers 1F90W-51 manual Parts Of The Thermostat, The Back of The Thermostat Body

Models: 1F90W-51

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PARTS OF THE THERMOSTAT

these, then gently pivot the thermostat body down to connect the three pin connectors on the lower portion of the thermostat back. Gently push until the snap connectors engage. DO NOT FORCE OR PRY THE THERMOSTAT, as this may damage the unit.

PARTS OF THE THERMOSTAT

The Back of The Thermostat Body

Turn the thermostat body over. On the back are the 3 "AA" Energizer® alkaline batteries.

The "AA" Energizer® alkaline batteries provide power to the thermostat when the 24vAC power is interrupted (for example, when you remove the thermostat from the wall for programming). Fresh batteries will maintain the stored program

for approximately a year. If power loss is long enough for the program to be lost, the thermo- stat will automatically return to the factory pro- grammed temperatures (64°F heating and 82°F cooling) when power is restored. You must reprogram the thermostat if this happens.

If the word BATTERY is flashing in the display window, the batteries are low and should be replaced with fresh "AA" Energizer® alkaline batteries.

!CAUTION

Before removing thermostat from the wall to replace the batteries, remove 24vAC power from the thermostat at the breaker/fuse box.

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White Rodgers 1F90W-51 manual Parts Of The Thermostat, The Back of The Thermostat Body