Question about Goodman GMS90703BXA Heater
I actually have a GMT070-3A model Goodman furnace, but my guess is that it's somewhat similar to this one regarding this problem. What happens inconsistently is that the heating element lights up when the unit is getting ready to start heating (blower has been running about 10 seconds or so and continues fine through all of this), but the element turns off prior to the point where the gas starts to be emitted. And of course, whatever sensor is in there won't supply gas without a hot element. If this cycles 3 times, I have to turn the power off to the unit before it will try again (another 3 times if need be -- usually starts up during the second go around). Again, this problem is inconsistent. And the heating element works, just turns off sooner than it should at times. Not sure what's causing this or what to check/replace. Thanks for your time with this!
He is right. the flame sensor is the culprit
Posted on Feb 28, 2007
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