AboutJ Cook Expertise With 25+ years experience, I am familiar with residential, commercial, and industrial HVAC equipment including but not limited to boilers, chillers, reciprocating and screw compressors. I am trained in all manners of control wiring.
Experience I currently have three HVAC licenses and Refrigeration license by the State of North Carolina. I have been in this field for over twenty years. I have been a service technician for a contractor and also worked at a state college in the repair and maintenance of steam lines and equipment. I am currently the Building Maintenance Superintendent for a municipality.
I have a Goodman (gulp) gaspack Model PGB042125-1 that is approximately 8 years old. In the past we have had to repair the the other regular issues (cracked heat exchanger, multiple bad igniters, burned compressor contacts, etc -- Thanks Goodman!), but I've got a new one and money is tight. The draft induction fan keeps cycling on and off -- regardless of whether the thermostat is calling for heat or not. The gas never turn on during the cycling and the igniter never glows, the induction fan just keeps cycling on and off and has been doing so for weeks. When the thermostat calls for heat, the unit works just fine. Is this a problem with the board that I keep reading about? I'm pretty handy with a volt meter but I have no clue where to start to diagnose the problem and I can't afford to either start replacing parts or pay for a house call to a professional to run the diagnostics. I've searched through the threads and cannot find an example of my problem. Please help me.
Thanks a lot for your time,
Walt
Answer You should be able to download a diagram with the unit model and serial number from the manufacturer web site if you do not have one and trace the inducer fan wiring. It will be controlled by the circuit board and it appears there is a stuck or malfuntioning relay on this circuit board. Thanks J
