Question about Goodman GMS90703BXA Heater

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Induction Motor continues to run.

I am blessed to have a GMP125-4. A few months ago I replaced the induction motor. The furnace has been working fine up untill 2 days ago. When the unit begins its cycle, the induction blowwer kicks on and then nothing happens. It continues to run for ever. The HSI never turns on. If however, I kill the power to the unit then turn it on. It works fine untill it calls for heat again. I'm thinking its the circut board any other suggestions?

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  • harrison191 Dec 12, 2008

    Well no one responded but just in case anyone else has this problem..I fixed it by replacing the board. Not that difficult. Take a few pictures of the set up and lable everything before you remove it.

  • Anonymous Mar 01, 2009

    I have the exact same problem.


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I'm sure you have since had this repaired and as a fellow Goodman 'blessed' I would appreciate reading your solution.
The condition you described could be caused by a failed relay or relay driver (transistor). Fortunately, the only problem we have had to date (~4 years) is a failed thermostat and a need for recharging of the AC coolant this last summer.

Posted on Sep 28, 2009

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Pull the rubber hose off the pressure switch. and blow into the Induced draft motor housing if you cant you can pull the hose off the IDM and try to clear it with a small paper clip. reconnect and try again. you can also get the flash code off the board while the unit is running but not working.

Posted on Sep 18, 2009

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