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Phil, Mechanical Engineer
Category: HVAC
Satisfied Customers: 5648
Experience:  Retired HVAC/ Electrical & Boiler contractor. Industrial
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I have replaced the circuit board, runs fine on LP, on AC

Customer Question

I have replaced the circuit board, runs fine on LP, on AC display says no/ac. 5 amp fuse appears to be good. GFI breaker is not tripped.
Submitted: 5 months ago.
Category: HVAC
Expert:  Phil replied 5 months ago.
Hello, I need the brand and model number of the furnace. and I need to know a lot about your technical skill set so that I can coach you most effectively. YOu will need a multi meter.

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