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  1. HVAC
    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...
  2. HVAC
    I would like to troubleshoot my Goodman furnace (GKS90904CXAG) before calling for service. Symptoms: No heat Observations: 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. My...
  3. HVAC
    Hi, 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...
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