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Phil, Mechanical Engineer
Category: HVAC
Satisfied Customers: 6022
Experience:  Retired HVAC/ Electrical & Boiler contractor. Industrial
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Billy, My furnace stopped working, so i had a technician

Customer Question

Hey Billy,
My furnace stopped working, so i had a technician come out to diagnose the issue. He said the ifc board was bad, so i replaced it myself. I wasn't getting a troubleshooting code before, but now it is blinking 3 times, saying the limit is open. I've pressed the buttons in on all three limits switches, but it doesn't seem to help. Can you please help me bypass the limit switches since i don't have an ohm meter?
Submitted: 1 year ago.
Category: HVAC
Expert:  BillyHvac replied 1 year ago.


what board number did you replace with?