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  1. #1
    Bmiller started this thread.
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    Copper or aluminum in refrigeration compressor?

    I just found a sure way to determine if a compressor has copper or aluminum windings. Knock off the electrical box and drill a tiny pilot hole in the center between the prongs. Follow it with a 1/2 inch hole, then drill into the windings. Peek in with a flashlight to see if they are aluminum or copper.

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  3. #2
    Soobthang's Avatar
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    Awesome. Gonna do this. Have a bunch sitting around.

  4. #3
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    Kool I'll have to try that would same me time.



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