17
Troubleshooting
If you have difficulty with your thermostat, please try the following suggestions.
Most problems can be corrected quickly and easily.
Display is
blank
•
Check circuit breaker and reset if necessary.
•
Make sure power switch at heating & cooling system is on.
•
Make sure furnace door is closed securely.
•
Make sure fresh AAA alkaline batteries are correctly
installed.
Heating
or cooling
system does
not respond
•
Set system switch to Heat. Make sure the temperature is
set higher than the Inside temperature.
•
Set system switch to Cool. Make sure the temperature is
set lower than the Inside temperature.
•
Wait 5 minutes for the system to respond.
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).
“Cool On” or
“Heat On” is
flashing
•
Compressor protection feature is engaged. Wait 5 minutes
for the system to restart safely, without damage to the
compressor.
“Heat On” is
not displayed
•
Set the System switch to Heat, and set the temperature
level above the current room temperature.
“Cool On” is
not displayed
•
Set the System switch to Cool, and set the temperature
level below the current room temperature.