Furnace diagnostic code

Glennbob Posts: 1, Reputation: 1

New Member

Dec 15, 2007, 01:18 PM

Furnace diagnostic code

Concord furnace diagnostics :

3 flashes : Pressure switch is open while inducer is on.

hvac1000 Posts: 14,540, Reputation: 435

Heating & Air Conditioning Expert

Dec 15, 2007, 01:27 PM

Plugged vinyl tube going to pressure switch.

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