Why won't air compressor motor turn with belts on?

by chris griffin

champion 80 g 5 hp air compressor it has a rebuilt motor when i turn on it tries to turn but barely then it will trip the reset button on side of motor

Hi Chris. Assuming that the compressor ran well before you added the rebuilt motor (suggesting that all is good with the actual power supply itself) then your compressor motor symptom sounds like it might be suffering from a bad motor rebuild, or a bad start capacitor.

See the page on this site about how to test one.

Once you have done that, if the cap turns out to be good, then it's time for a motor test, and then, please add a comment here telling us what you found, and we'll press on.


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