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Phil, Mechanical Engineer
Category: HVAC
Satisfied Customers: 6022
Experience:  Retired HVAC/ Electrical & Boiler contractor. Industrial
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I turned off the breaker to the furnace to install a new

Customer Question

JA: Hello. What is your issue regarding?
Customer: I turned off the breaker to the furnace to install a new thermostat, not the furnace isn't turning on. There is no power running to the cords for the thermostat.
JA: Just to clarify, do you think this is a larger HVAC problem, or something specific to the thermostat?
Customer: Related to the furnace
JA: Do you plan on doing the work yourself?
Customer: Yea
JA: Anything else we should know to help you best?
Customer: That I've gone through every troubleshooting exercise I can think of
Submitted: 12 months ago.
Category: HVAC
Expert:  Daniel Plourde replied 12 months ago.

hi i am dan i can help you with this. inside the furnace there is a circuit board that will have a small blade fuse on it. i would pull that out first and check it. if it is blow i would double check your thermostat wiring and replace the fuse.