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Compressor making buzzing sound wont start checked capacitor ok

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Check voltage at the load side of the contactor. Check continuity of the compressor windings. Disconnect the power first. Connect one lead of the ohmmeter to Common, then connect the other to the Run winding and read meter, then connect to the Start winding and read meter. Neither should indicate an open leg.

Posted on May 11, 2010

  • Brian Niten May 11, 2010

    Is the outside fan running? That would rule out the contactor. How did you check the capacitor?

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1 Answer

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I understand that you are having a problem with your Rudd condensor. The fan is turning slowly and the compressor is making a buzzing noise which has a Diversitech hard start conected to the capcitor.

You have already replaced the run capcitory on the unit and have attached the compressor wire to therm and c and the fan to therm and fan. The hard start kit shoudl be attached to the therm and c with your compressor wires attached to the same place. The hard start kit is to give the compressor the extra push (electrical charge) to start.

You need to check your connections and make sure that you purchased the proper run capcitor. If you have purchased the proper compacitor and the connections are right then you have a bad fan and the compressor as gone out on the unit.

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1 Answer

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1 Answer

Buzzing sound


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