Honeywell RTH6350 - Manual (Page 23)

RTH6350/RTH6450/RET93E0/RET95E0 Series
21 69-2415ES—05
About your new thermostat In case of difficulty
If you have difficulty with your thermostat, please try the following suggestions.
Most problems can be corrected quickly and easily.
Display is blank • Make sure fresh AA alkaline batteries are correctly installed
(see page 15).
Temperature
settings do not
change Make sure heating and cooling temperatures are set to acceptable ranges:
• Heat: 40° to 90°F (4.5° to 32°C).
• Cool: 50° to 99°F (10° to 37°C).
To restore
default schedule
settings Follow these steps to restore default schedule 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.