Honeywell RTH8500 Operating Manual page 22

Operating Manual
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.
• If "Wait" is displayed, the compressor protection timer is on. Wait 5
S S Y Y S S T T E E M M 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 to set system to Cool. Make sure the temperature is set
lower than the Inside temperature.
minutes for the system to restart safely, without damaging the
compressor (see page 15).
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