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Phil, Mechanical Engineer
Category: HVAC
Satisfied Customers: 6022
Experience:  Retired HVAC/ Electrical & Boiler contractor. Industrial
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Have a furnace-Honeywell ChronothermIII thermostat. Heat

Customer Question

Have a Coleman furnace-Honeywell ChronothermIII thermostat.
Heat will not com on
Replaced batteries
Set on auto heat
Screen says the time-AC
Jerry ***@******.***
Submitted: 1 year ago.
Category: HVAC
Expert:  airheatman replied 1 year ago.

Will anything come on at all?

Expert:  airheatman replied 1 year ago.

The AC on thermostat indicates we are not getting any power from the furnace.Lets start by seeing if there is a small auto type fuse blown on furnace control board.