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Phil
Phil, Mechanical Engineer
Category: HVAC
Satisfied Customers: 6022
Experience:  Retired HVAC/ Electrical & Boiler contractor. Industrial
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We just replaced the circuit board and there is a red light

Customer Question

We just replaced the circuit board and there is a red light blinking on the circuit board and the blower won't turn off! It's also blowing cold air
Submitted: 1 year ago.
Category: HVAC
Expert:  Jason Whatley replied 1 year ago.

Hi my name is ***** ***** I'm here to help you out! What is the make of the furnace? Also what is the part # ***** old board and part # ***** new board? First what you are describing is an open limit circuit or blown control fuse on the board.