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Old 01-11-2011, 11:35 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, 11:56 AM   #2
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airconditioner fan noise?


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.

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