Owner's Manual
Page 21
...switches are on . • Make sure furnace door is set lower than the Inside temperature. • Set system switch to Cool. Most problems can be corrected quickly and easily. Heating or cooling system does not respond • Set system switch to respond. 19 Display is blank ...furnace door is securely closed securely. • Make sure fresh AA alkaline batteries are correctly installed (see page 13). In case of difficulty RTH3100C If you have difficulty with your thermostat, please try the following suggestions. Make sure the temperature is closed . • Wait 5 minutes ...
...switches are on . • Make sure furnace door is set lower than the Inside temperature. • Set system switch to Cool. Most problems can be corrected quickly and easily. Heating or cooling system does not respond • Set system switch to respond. 19 Display is blank ...furnace door is securely closed securely. • Make sure fresh AA alkaline batteries are correctly installed (see page 13). In case of difficulty RTH3100C If you have difficulty with your thermostat, please try the following suggestions. Make sure the temperature is closed . • Wait 5 minutes ...