Model #921152150 CRAFTSMAN Air compressor

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Question and Answers

Q:

Replaceing the brushes on a 921152150 air compressor 921152150 Craftsman Air compressor

A:

Thank you for choosing Sears Parts Direct. I will be more than happy to help with your air compressor. Upon researching model 921152150:  the motor and motor parts are not available for this model, this includes the brushes. This model has a non-serviceable motor so the parts for the motor are not available as replacements.

I trust this information will help you, we appreciate your business thank for choosing Sears.

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CarlosZ -
Sears Technician
April 29, 2015
A:

So basically this is a throw away compressor when the motor no longer works?

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Greg -
September 08, 2015
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Q:

Machine keeps blowing fuse after shut off 921152150 Craftsman Air compressor

A:

Thank you for your question. I'm sorry you are having this problem with the fuse blowing. This problem can be caused by a faulty check valve. Fuses will also blow if the motor on the compressor is not getting enough electricity to run. Low voltage causes an electric motor to draw excessive amperage. This will cause a fuse to blow. I hope this will help you. 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.

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Scott D -
Sears Technician
November 06, 2013
A:

Thanks for answering my question. As it turns out I was confused about having the correct part, because I showed two parts with the same id number. I now know I have the right part. I feel confident in changing as long as I'm sure I'm following all the safety requirements that is, turning off and unplugging the machine, set the outlet pressure to zero, remove any air tools and acc and finally open the drain valve from the tank. Please let me know if there is anything else I my need to do for safety. Thanks again

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John -
November 07, 2013
A:

John, you have everything covered to replace the check valve. Just be sure the air has been drained out and the unit is unplugged.

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Scott D -
Sears Technician
November 08, 2013
A:

I need an in-line fuse for my compressor, what size or part number is it? Hank

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Hank -
May 13, 2015
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Q:

Compressor shuts off and doesn't come back on 921.152150 921.152150

A:

Thanks for the inquiry and for being a valued member.

I am sorry to hear of the issue you’re having with the compressor not starting to recycle pressure. I know how frustrating that is. 

This sounds like an issue with the check valve. When the tank pressures up, a failing check valve does not release the pressure from the compressor head. When the compressor tries to start back, the motor cannot push the piston past the pressure on the head. This is why it starts fine when on the initial startup; there is not any pressure on the piston.

You can remove the check valve and clean it to see if that will help, but often it just has to be replaced. The check valve is part number E104734.

I hope this helps and thanks for using SearsPartsDirect.com. We appreciate your business. 

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Jeff Wallace Sr -
Sears Technician
January 28, 2015

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