Question about Goodman GDS80904BNA Open Flame Heater

2 Answers

Furnace won't fire up , induction motor comes on but no ignition. Get blinking lites that indicate problem with presure sensor, replaced it and still get same indicators. ANy ideas. I am leaning toward new board,

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  • Dennis Blackwell
    Dennis Blackwell Sep 29, 2009

    Thanks - but we are not getting the hot surface ignitor to come on - just the induction motor and the blinking lites = saying that the presure switch id open and then that it is closed. we replaced the presure switch- get the same messages.

  • Dennis Blackwell
    Dennis Blackwell Sep 29, 2009

    I don't have ignition , all we are getting is the induction motor runing when the thermostate calls for heat. The ignitor does not lite up, we get blinking lites telling us that the presure switch is open then we get another message that says it is closed. We replaced the presure switch and got the same error messages. There is no corrosion the unit is only about 2 years old. It was working fine last May the last time it called for heat.

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  • Master
  • 3,741 Answers

If after replacing the pressure switch its showing the same problem then try this --------- pull the exhaust fan end of the hose that runs from the pressure switch to the exhaust fan. Then snipoff about 1/4 - 1/2 inch off the hose, and attach the hose back onto the exhaust fan and check out. ------------- if still the same problem then is the faulty board which needs replacement. ----------- you can get new board from www.repairclinic.com or from www.partsselect.com ----------------- this will help.please do rate the solution.thank you for using fixya.thanks.keep updated.

Posted on Sep 29, 2009

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  • Master
  • 1,462 Answers

Hi,

If your igniter comes on but no ignition, that eliminates the possibility of a bad or clogged pressure switch, high limit or flame rollout switch.

This issue may be due to one of the following reason
1)control board must be gone bad,
2)gas valve going bad.
3)some loose, corroded, or faulty wiring.

Before the igniter comes on the furnace does a self diagnostics to ensure everything is working, or the furnace will not make it to the igniter sequence.

Induction motor, pressure switch/s, limit controls are closed…then comes on the ignitier, gas valve opens, pilot runners and burners ignite, flame sensor detects the flame, blower comes on and all operations are working.

Checking all the three possibilites would solve your issue..

Please leave me comments, if you need furthur assistance
RNJ VINODKUMAR

Posted on Sep 29, 2009

  • Vinod Kumar
    Vinod Kumar Sep 29, 2009

    Even though you get those message, Actually the error is due to



    1)control board must be gone bad,
    2)gas valve going bad.
    3)some loose, corroded, or faulty wiring



    Any one of these must be wrong, Please check this and tell me



    Please leave me comment

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