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Phil, Mechanical Engineer
Category: HVAC
Satisfied Customers: 8768
Experience:  Retired HVAC/ Electrical & Boiler contractor. Industrial
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I installed my new Nest 3rd Gen tonight. During the

Customer Question

Tim I installed my new Nest 3rd Gen tonight. During the installation I misread the terminal markings on the Nest and attached the Green wire to the C connection. Of course it did not work. I have now fixed the problem but now I am getting an error of no power to C1. Any suggestions?
Submitted: 9 months ago.
Category: HVAC
Expert:  Phil replied 9 months ago.

Hello, it appears that you may have blown a 3 amp fuse in the furnace's printed circuit board, Its an automotive type fuse.... see if you can find one, then examine it, We can go from there.