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Old 01-11-2011, 10:35 AM   #1
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airconditioner fan noise?

i have carrier central airconditioners (4) in my house. The fan motors on the outside with the compressor occasionally squeel and hang up - and the fan stops or won't start spinning. I can usually free it with a screw driver - and seems to run fine (for years).. I'm looking for a way to lubricate the fan motors. There are 4 holes above the fans that look like lubricating ports? Should/could I take the fan off and turn it upside down and spray lubricant "around" the shaft?


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Old 01-11-2011, 10:56 AM   #2
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No I wouldn't do that, lubricant and electric motors really don't get along very well.

A few drops of 3 in 1 oil on the shaft may help, but what you are describing sounds like a bad bearing.

Lubrication points on electric motors are typically perpendicular to the shaft orientation and located very close to the ends of the motor.


When its all said and done there is usually more said than done
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