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Goodman heat pump not heating

I have an older heat pump ( Goodman model PGB036100-1A REV A). This morning it would come on for about 1 minute then shut off. There is a LED light that blinks 4 times when it shuts off. According to the back of the panel this is indicating that its a problem with the open limit switch. I called a service technician and was told to shut the heat off for a few minutes and then turn it back on. After doing so the heat has not came back on at all, only blowing out cold air. Any suggestions on what the culprit is and what I can do to fix it? The service tech wants $75.00 to come out and look at it plus $75.00 an hour plus parts to fix it, money that I do not have right now.

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  • alan030264 Feb 04, 2009

    Are you refering to a thermostat thats inside the unit itself? The only thing that I have seen behind the panel that I removed is the main circuit board. Thats where I seen the LED light that was blinking 4 times and the back of that panel had the trouble shooter codes and said that 4 blinks indicated the open limit switch. How would I check the thermostat ( assuming that I can find! )?

  • Anonymous Feb 05, 2009


  • Michael Fisher
    Michael Fisher May 11, 2010

    Have You Located The Igniter Or Anything?

  • Michael Fisher
    Michael Fisher May 11, 2010

    Have You Checked The Thermostat? It Will Be Right Next To Where The Unit Fires.



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Just wanted to post an update and let everyone know that I had a technician come out to look it over and he says that it is the open limit switch thats gone bad. He was supposed to return this morning to replace it but instead he called and said that no one has that particular one in stock and that it will be tomorrow before he can get it ( just my luck! lol ). I would like to thank everyone and hope all of you have a great day!

Posted on Feb 05, 2009


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