In Case Of Difficulty - Honeywell FocusPRO TH5220D Operating Manual

FocusPRO ™ TH5220D Non-programmable Digital Thermostat

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 • 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 thermostat is battery powered, make sure fresh AA alkaline batteries
Temperature Make sure heating and cooling temperatures are set to acceptable ranges:
settings do not
• Heat: 40° to 90°F (4.5° to 32°C).
change
• Cool: 50° to 99°F (10° to 37°C).
are correctly installed (see page 10).
11