CFM 80 pg. I've tracked a problem to what I believe is a faulty flame sensor.(6622500) But on this unit the flame sensor is incorporated in the ignighter.
How does this work with just the two wires? Is there a way to test the flame sensor portion or bypass for diagnostic proposes?
When the furnace starts the wires leading to the ignighter read 110vac. The infighter glows, a few seconds latter the furnace ignights and the voltage drops to 0. Then in a few seconds or up to a min the furnace shuts off the gas valve and startes the start up process all over.
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