If a fresh 9 volt Energizer® alkaline battery is installed, the program will be maintained for about one week with no 24VAC power present to the thermostat. See OPERAT-
ING YOUR THERMOSTAT.
4.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.
5.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.
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 thermostat to display incor- rectly. To correct this, remove the thermo- stat from the wall and disconnect the bat- tery. Wait about two minutes, then re- connect the battery. The thermostat will revert to the factory preset program until you reprogram the thermostat. If you don’t want to reprogram the thermostat immedi-
ately, press | SYSTEM | until OFF is displayed |
SWITCH |
and replace the thermostat on the wall.
Then press SYSTEM until HEAT, COOL,
SWITCH
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