Why does my compressor trip the garage circuit breaker?

expert EXPERT January 30, 2008

Be sure that you are running the compressor on at least a 15 amp circuit or the draw will just be too much to support and keep in mind that even with a 15 amp breaker the draw could still be exceeded if other items are also drawing from the same circuit. Other potential problem areas are bad grounds or incorrect polarity in the circuit or wall outlet.

If power to the compressor is okay then you might have an issue with the start capacitor in the motor or the motor itself. It is unlikely any mechanical issue with the pump itself that would appear in just 2-5 seconds use.

The one exception might be if the pump assembly is completely locked for some reason. This model connects the electric motor directly to the pump assembly so it would be difficult to eliminate that possibility. You would need to unplug the compressor and then remove covers and components until you found a way to manually confirm if the pump assembly or motor actually turn. Both will have resistance but both should still turn.

Depending which motor your model has on has, there may be a start capacitor kit available if needed, but testing the motor and capacitor requires some experience and training or you could end up shocking yourself so at that stage you might want to consult a professional.

You can view the manual online at Manage My Home by following the directions in the link below for more basic troubleshooting and electrical requirements. There are also part listings and diagrams online at the Sears Parts site that will give you a better idea of all the parts and how they fit and work together. You can order parts directly from that site or use the part numbers there or in your manual to order parts through your Sears Store.

John Talens May 28, 2010

I am having the same issue with 919.167310. I removed the starting capacitor and examined the centrifugal switch...both seem ok visually, but I have no means of testing. How would I go about obtaining the start capacitor kit you mentioned above? Also, if this is not available...would you be able to tell me if any of the later model pumps will fit my application.

coboomercoa July 10, 2010

maybe this is too simple but we found out the extension cord we were using wasn't heavy enough!