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Goodman furnace 4 blinks

I have a goodman furnace, and the diagnostic light is blinking 4 times. I removed the access panel and the chart indicates '' open high limit''. What does this mean, and is it something i can fix? I bought the furnace through a ''buddy'' and he installed as a ''side job''. It is a high effiency furnace and is only two years old. I can't tell you the amount of times I have had to call my ''buddy'' to have him come look at it. Anyways, the furnace is out, the kids are cold, it is 5 degrees here, with -25 wind chill, and my ''buddy'' is not answering any of his phones. Any help would be greatly appreciated.

model# gcs90703bxaa

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  • joetime12 Jan 18, 2009

    Same problem. The blower comes on but no attempt for flame. The glow plug is fine, but the 4 flashes is all I get.

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In the compartment with the blower moter there is a little (button) with two wires going to it.(it is attached to the top (you will have to look up in the compartment) if the unit is installed up and down and not on the side.) (If it is in sidways it is in the section between the two comartments). anyways.... on mine there is a little reset button right between the wires.... press it and see if it makes a click sound. try your start up procedure and see if the problem goes away... I don't know if MY equipment got too hot or if the switch is failing... but it worked for me.

Posted on Mar 04, 2009

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