Honeywell RTH6300B Installation Manual page 25

RTH6300B Programmable Thermostat
In case of difficulty
Heating or
• Press
cooling system
does not respond
• Press
• 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 • Compressor protection feature is engaged. Wait 5 minutes for the
"Heat on"
is flashing
S S Y Y S S T T E E M M button to set system to Heat. Make sure the temperature
is set higher than the Inside temperature.
S S Y Y S S T T E E M M button to set system to Cool. Make sure the temperature
is set lower than the Inside temperature.
system to restart safely, without damage to the compressor.
23