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Heater motor,fan making noise

Furnace making noise when fan engages

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Check to see if something is in the fan blades that is throwing it off balance. Also check the belt to see if it is ready to break.

Posted on Oct 02, 2009


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The heater is running rough. Making noise. Sounds like a clothes dryer. Is usually quiet.

There are very few moving parts in your furnace. The only component that would normally do this is the fan. You can turn on the fan only at the thermostat. Try turning on the "fan only" and listen to the furnace. The belt may need replaced, or the fan motor. You can repair yourself if it is the fan motor or belt. The belt is the same as a fan belt on your car, and it replaces the same.

May 08, 2015 | Rheem M206A 206K BTU Pool and Spa Propane...

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I have a goodman furnace that give a rattle and vibration noise througt the vents in the house when the furnace comes on

Check the main blower. Make sure there is no debris stuck in the fan wheel( squirrel cage) or the blower as this can cause the blower to be out of balance and vibrate. Also check the blower wheel for any up and down or sidevto side movement which could indicate a worn motor bearing. Hope this helps.

Dec 24, 2013 | Goodman GMS90703BXA Heater

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Our Goodman furnace just started making a a very loud grinding noise when the furnace turns on. Also the temperature in the house keeps dropping so we have to keep adjusting teh thermostat. Any advice on...

If it makes the noise before the blower comes on it would be the exhaust fan. If it makes the noise when the blower comes on then I would say either the blower motor or bearings to the fan.

Dec 27, 2010 | Goodman GMS90703BXA Heater

1 Answer

Makes a noise when turned on.. sounds like fan or fan motor.

I would make sure the heater is unplugged then remove backscreen and foam filter. Carefully clean firter with warm water and alittle dish soap. Rinse thouroughly and air dry it. I would clean any hair lint or other debris from fan blades,motor and heating elements. You can use a tooth brush to clean heating elements.You can also use a drop or two of light grade machine oil or WD-40 on blower shaft where it enters the motor. Wipe off any excess oil and when you're sure filter is dry reassemble and try it. Hope this helps you.Thanks

Nov 16, 2010 | Pelonis Disc Furnace Heater

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My furnace was making noise then shut down. I turned it off tried to restart. It just has a small humming noise now

sounds like possibly the indoor fan motor has gone bad....try turning your thermostat to "fan on" and check for air flow. if no air flow the motor will have to be replaced

Oct 21, 2010 | Heating & Cooling

1 Answer

Makes a noise, but the fan does not turn, it spins

I was told to change the capacitor on the blower motor and that solved my problem.

Jul 21, 2010 | Tools & Hardware - Others

1 Answer

Trying to rollover?

Hi the motor might need some oil if you can oil this type ,

spin the motor with the power off see if the fan blades are rubbing on the sides , also push the fan blades back and fowards to the play in the bearing in the fan motor , you my find you need a new motor

Feb 12, 2010 | Heating & Cooling

2 Answers

I have a new home 1 yr and when the furnace kicks in, I am assuming the fan it makes a noise but as soon as the heat starts the noise is gone, could this be the furnace blower

Check by turning the unit off and turn the fan to on. Do you hear the noise now? The noise your hearing could be coming from your combustion fan assembly instead. Newer furnaces have a in-shot burner and are nosier than the old style of heater.

Jan 04, 2010 | Carrier XHB123D X/Y Series Heat/Cool Air...

1 Answer

Can hear furnace on but fan will not engage. I

This is probably the fan limit that is bad. It should be a black bow tie looking thing next to or near the blower.

Dec 09, 2009 | Coleman Propane Forced Air Heater...

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