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Manage My Life

What is wrong with my Craftsman air compressor 921.152100?

by Manage My Life Last activity date:
October 16th, 2011

Did not build pressure. Replaced cracked regulator, then replaced starting capacitor. Now, builds to 50#, stops, surges and quits. Keeps surging and quitting over ande over. New capacitor has 2 wires. Could it be hooked up wrong? Local repairman says makes no duifference. (Original problem was stopped up air intake by mud dauber which I fixed.)

Tags:
Air Compressors , Craftsman , Garage Organization & Shelving
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Answers (2)
Mark T
Thank you for your question.

I am sorry you are having a problem with the air compressor. On most capacitors, it does not matter which wire goes on which terminal. To be sure, look at the old capacitor. If it has a plus and negative marked on the capacitor it will make a difference. Just reverse the wires and see if runs differently. If you have a meter that will check capacitors, I recommend checking both capacitors. If both of the capacitors are fine, the problem is likely a failed motor. If it had over heated when the start capacitor was bad it could have damaged the motor windings.

I also recommend plugging the compressor into a different outlet, to be sure the outlet is not causing the problem.

Please reply below with more details if you need further assistance.

Here is a link to order any parts you need.

Sears Parts Direct

.

If you do not feel confident repairing this problem yourself, then you can have it repaired by a Sears technician. Here is a link that will provide the nearest drop-off locations:

Sears Home Services

.

Thank you for using Manage my life.

Mark T.
by Mark T
October 16th, 2011
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Manage My Life
Managemylife.com is always a great resource to find the answers to just about anything. Your expert will research your question and respond within two business days but usually sooner.
Answered in 6 minutes
by Manage My Life
October 14th, 2011
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