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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
(see page 16).
Heating or
cooling system
does not respond
• Set system switch to Heat (see page 7). Make sure the
temperature is set higher than the Inside temperature.
• Set system switch to Cool (see page 7). Make sure the
temperature is set lower than the Inside temperature.
• Wait 5 minutes for the system to respond.
In case of difficulty
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