RTH6300B Programmable Thermostat
17 69-1925ES—03
In case of difficulty
Heating or cooling
system does not
respond
• Press
SYSTEM
button to set system to Heat. Make sure the temperature is
set higher than the Inside temperature.
• Press
SYSTEM
button 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.
• Wait 5 minutes for the system to respond.
“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 (see page 14).
Other problems
• If the above measures do not resolve the problem, check the In Case of
Difficulty section in your thermostat
Installation Guide
.
