In Case Of Difficulty - Honeywell PRO TH4110B Operating Manual

Operating Manual

In case of difficulty

If you have difficulty with your thermostat, please try the suggestions below. Most
problems can be corrected quickly and easily.
Display is blank • Make sure fresh AA alkaline batteries are correctly installed (see page 15).
Heating or • Set system switch to Heat (see page 7). Make sure the temperature is
cooling system
does not respond
• Set system switch to Cool (see page 7). Make sure the temperature is
• 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.
set higher than the Inside temperature.
set lower than the Inside temperature.
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