69-1836—02 18
If you have difficulty with your thermostat, please try the following suggestions.
Most problems can be corrected quickly and easily.
Display is blank • Checkcircuitbreakerandresetifnecessary.
• Makesurepowerswitchatheating&coolingsystemison.
• Makesurefurnacedoorisclosedsecurely.
• Ifthermostatisbatterypowered,makesurefreshAAalkaline
batteries are correctly installed (see page 17).
Temperature
settings do not
change
Make sure heating and cooling temperatures are set to acceptable ranges:
• Heat:40°to90°F(4.5°to32°C).
• Cool:50°to99°F(10°to37°C).
To restore
Energy Star
®
default settings
Follow these steps to restore Energy Star default settings (see page 10):
1. Press SET CLOCK/DAY/SCHEDULE.
2. Press SET SCHEDULE.
3. Press DONE and NEXT at the same time for 4 seconds.
In case of difficulty