I have a Goodman gmnt080-4 propane furnace. I smelled gas coming from the exhaust vent so I cleaned the blower and secondary heat exchanger coil. When I removed the burner box there is a plate between it and the heat exchanger. On of the holes in the plate had a crack where the flame had hit for...
I would like to troubleshoot my Goodman furnace (GKS90904CXAG) before calling for service. Symptoms: No heat
I can hear the furnace running. It stops when I flip the breaker.
I hear clicking when I turn on the furnace.
The led blinks 3 times.
The furnace does not ignite.
I'm an engineer and have some technical know how. I will say upfront I have not exhaustively searched all the threads on this furnace.
I have a GMS8 furnace, vertical, natural gas, single stage, about 10years old.
It started as an intermittent problem, of the furnace starting up, the...