Posted by PJH on October 27, 2020 at 17:17:59 from (104.235.150.4):
Westinghouse motor #321P591
Is there a way to tell if an electric motor needs a run capacitor to operate? About 15 years ago I replaced a blower motor that was getting a little noisy. The replacement motor has a run capacitor. I put the old motor on a shelf and now I have forgotten what little I once knew about it. There is no mention of a capacitor on the motor label. It has five wires - black, white, red, yellow and blue. The red, yellow and blue wires are taped up but not connected. It is a four speed motor, and I assume these taped wires would change the speed. The motor runs on the black and white wires, but it seems to get hotter than it should. I ran it for about ten minutes on my workbench, and it got nearly too hot to hold my hand on. It would run cooler in the blower, I would think.
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