Question about Goodman GDS80703ANA Open Flame Mid-Size Heater

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My furnace shuts off sometimes after the first 20-30 seconds.

Sometimes my gas good man furnace starts running then like after 20-30 seconds everything shuts down. I changed the flame sensor with a new one and I still have sometimes the same problem. After that I turn the power switch off then on. It starts working again. Is there any reason why this is happening? Anything I can do to fix it? The furnace is only 6 years old.

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  • ekremagic Jan 08, 2009

    help me please



  • dwkcool May 11, 2010

    did you check for the flash code

  • Anonymous Mar 29, 2014

    My Greenway F/P started to shut itself off > Also usually you had to turn on the heat and flame separately but they started to come on simutaneously, a couple of days before it stopped working.

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The two most common reasons I have found for this are listed below. You have already addressed the third one.

1) Grounding issue. This can be difficult to find but easy to diagnose. Try using a volt meter or even just a piece of wire. Touch one end to an unpainted surface of the interior furnace cabinet and the other end to the sheet metal plenum or other ground. If the symptoms go away then you have diagnosed the problem and need to find the faulty ground.

2) Pressure in the flu. Check to make sure that the flu vent pipe is not clogged or even partially filled with debris. The small rubber hose that connects to the switch from the inducer blower motor may be clogged. Also check the orifice on the inducer motor side. You can clear this with a paper clip. Water (condensation) in the inducer motor housing or pressure switch can cause a failure too. Rarely is the pressure switch itself bad. This usually will only happen if it has been physically damaged or soaked. Best of luck.

Posted on Jan 29, 2009

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