Blower motor humming


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Old 08-12-10, 08:43 AM
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Blower motor humming

I live in a mobile home with an inside and outside unit not a full package unit. The a/c is working fine but after it shuts off, i believe the blower motor keeps humming. I've opened the unit to get to all components . i find nothing is hot or overheated and it feels like the motor of the blower may have a little vibration to it while it is humming. What do i need to replace or fix to stop this humming and is it a fire hazard?
 
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Old 08-12-10, 07:47 PM
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probably just the transformer humming they can be pretty loud. get your stethoscope out and pinpoint the source. Note: if you do not have a stethoscope you can get a set at your local auto parts they are used to identify piston knocks/squealing bearings etc on vehicles, they work great for isolating/pinpointing noise sources on all types of equipment including your HVAC unit.
 
 

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