by Vincent szentadorjany
(Upatoi Georgia USA)

I have a campbell hausfeld (6 hp 30 gallon) air compressor model WL611201aj that is about 14 years old.

When I turn it on the motor runs slowly then trips the breaker.

Wl373001sj Campbell Hausfeld Air Compressor Pump / Motor Kit Wl373001
Wl373001sj Campbell Hausfeld Air Compressor Pump / Motor Kit Wl373001

It doesn’t matter if there is pressure or not in the tank. I have it plugged directly into a 120v 15 amp outlet. It has worked fine at the current location for some time. I recently switched outlets and the same result. If I use WL373001SJ Campbell Hausfeld Air Compressor Pump / Motor Kit replacement.

Will this fix the issue?

Thank you.
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Vincent, if this was my Campbell Hausfeld air compressor, from the symptoms you describe, I would be checking out the start capacitor.

That would be quite a bit lower cost fix than the kit you refer to.

If you prefer, however, I do believe that the kit would resolve your compressor problem.

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Motor tripping
by: Buster

I agree with Bill, start capacitor would be where to start on this one.
Buster

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Follow up question
by: Vincent Szentadorjany

Can someone help me identify where the start capacitor is located on this model?
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Vincent, the two “humps” sitting on the motor are the capacitors. One is the start cap, the other is the run cap.

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Start capacitor
by: Vincent

I believe I have identified the start capacitor in this compressor. I have checked it according to the checking capacitors page listed here and it is bad. as well as split and leaking.The numbers listed are Aerovox c103237300423. 233-280mfd. 220vac. 60hz. The 220vac is confusing me. The compressor has run from a 110v 20 amp circuit for years. Anyhow, can someone tell me the best place to locate the correct capacitor.
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I suspect the rating indicates that it’s good up to 220 VAC.

As to getting one, why not start with Aerovox themselves?


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