Replacing fan motor in roof AC
Several years ago the fan started to slow down after several hour of use. Tried oiling the bushings which seemed to help but recently it's gotten so bad that after 15 minutes the motor slows down and ...
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It's a squirrel cage blower and I could not hear it rubbing, even turning the shaft by hand. The other two units will keep turning for several turns when spun while this one would stop in less than a turn. It's the front unit and I guess it takes more bouncing than the other two???
