Question about Goodman GMS90703BXA Heater

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When my Goodman Gun125-5b furnace fires up the draft inducer whines.Is there a fix or does it need replaced? How hard is it to replace it?

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  • Anonymous Mar 31, 2014

    I need to replace the inducer motor but I can not find the manual. Can I get a replacement manual or at least the instructions regarding replacing the inducer motor?



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Try and spray some mystery oil on the shaft. It may help. If not, you will be needing a replacement inducer.

Posted on Feb 18, 2009


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Need to find a replacement part

Here you go Angela

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Nov 27, 2016 | Heating & Cooling

1 Answer

1999 goodman furnace draft inducer working 50% of the time

All the symptoms point to a stack blower that needs replacement

Feb 09, 2013 | Heating & Cooling

1 Answer


I have done this 34 years and never need to know this . simply replace the $15 part to see if it works, labors not cheap and its better value to the customer for you to sawp it out on a call even if its not bad yet as they are 1 of the weak links that you know will fail . if it doesnt work, which i never saw except when the orifice on the induced draft housing was carboned up! or 1 time the induced draft squirrel cage was disintegrated with the motors shaft left spinning nothing and doing nothing as toinducing any draft! threw mw as the motor was working! and orifice clear and new switch but still not working!!! had to be the cage or poltergeist lol!

Feb 24, 2012 | Goodman Heating & Cooling

1 Answer

Goodman GDS80703AXBC Flashing 6 times. Replaced Limit, Flame Roll Out, Flame sensor, Ckecked Flue. Furnace used to ignite then shut down flashing 6 times. Used central air over summer just fine. Now...

Per Goodman installation manual:
Misaligned burners, blocked flue, induced draft motor failure. I'd check the inducer first. Up top you'll see a small motor. Near it youll see a small ruber like hose. That hose goes to a round safety called an air proving switch. The end of the hose that connects to the metal, remove it and make sure the metal hole is not stopped up. Make sure the hose is clear and not kinked. Make sure the induced draft motor is working, should be the first action in a series of operation during heat. The air proving switch should close during normal operation, has 2 wires that are connected. Check all wires for loose connections, while the furnace is unplugged and no power present. Make sure everything is put back where it belongs and try it again. Most of these issues are IDM related but I have seen the rollouts open due to burners firing towards the wall of the unit, instead of into the opening of the heat exchanger. Work safe and I hope this helps!

Sep 30, 2017 | Goodman Heating & Cooling

1 Answer

I replaced the ignitor on my goodman furnace, but it still isn't turning red and the fire still doesn't come on. what is the problem?

Is your induced draft motor coming on first and if so have you checked the voltage to ignitor when it's calling for heat. If you are not getting voltage to ignitor then you probably need to replace the control board. Thank you.

Dec 30, 2010 | Heating & Cooling

1 Answer

It seems the bearings on my Induced Draft Blower Motor are going out. The furnace runs for a bit then I can hear the motor seizing. It has been making whining noise for awhile but has gotten...

While you may be able to get just a motor it will not save you much. You will also run the risk of damage to the housing or fan(s) when you take the old one apart and try to install a new motor. Unless the new blower unit is several hundred dollars I would recommend you replace the whole assembly.


Dec 02, 2010 | Goodman B1859005 Induced Draft Blower...

1 Answer

What is the model number for the Draft Inducer Motor Goodman GNP075-2REVB Furnace

I think you must mean GMP075-2rev8 check this link for parts listing:

Johnstone supply which has many locations in many cities sells Goodman and stocks parts, and available mailorder

Feb 18, 2010 | Goodman Furnace Draft Inducer Blower ...

1 Answer

Need help with a goodman gmt070 furnace...error code flashes three times, i have replaced pressure switch, still flashed, replaced board, still flashes three times...flue is clear, draft inducer motor is...

it may be clogged at the barbed fitting on the induced draft motor where the pressuer switch tubing connects. take a paper clip and **** it out make sure you can stick it thru freely till you can feel the Inducer wheel then reconnect and try again.

Nov 04, 2009 | Heating & Cooling

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