Honeywell YRTH7500D1009 - 5 Day Program Thermostat Operating Manual page 24

Operating Manual
In case of difficulty About your new thermostat
Heating or cooling
system does not
respond
69-2744ES—01
• Press SYSTEM to set system to Heat. Make sure the temperature is set
higher than the Inside temperature.
• Press SYSTEM to set system to Cool. Make sure the temperature is set
lower than the Inside temperature.
•
Check circuit breaker and reset if necessary.
•
Make sure power switch at heating & cooling system is on.
•
Make sure furnace door is closed securely.
•
If "Wait" is displayed, the compressor protection timer is on. Wait 5 minutes
for the system to restart safely, without damaging the compressor (see
page 18).
22