I had found a bad compressor containing an open three phase winding. I am simply explaining how to diagnose this situation. This compressor in particular is for a York packaged rooftop unit “RTU”.
I enjoy teaching and hope to be more than just a HVAC technician one day.

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15 thoughts on “Compressor Diagnosis Open Winding. #compressor #copeland #RTU #airconditioning #HVAC #HVACEXPLAINED

  1. Steve E says:

    This was a great video, clearly explained and helpful. I saw your responses to another comment saying that you were having some trouble and not getting the views you’d hoped for. Hopefully that will turn around for you. I love these type of instructional videos and you’re a natural at it so don’t get discouraged. This one popped up in my suggested videos and I’m glad it did! Went ahead and subbed. Keep it up!

  2. Jesus Romero says:

    The compressor is under vacuum when is attached to the condenser and i seen techs using the megohmmeter to test the resistance on the compressor, Could you please explain me why it shouldn't be done like that? And when is a good time or how is a good way to do it? I'll appreciate an answer.

  3. Johnny B says:

    How about this, I had one of these not too long ago. Compressor with open winding but not continuity to ground. room temperature to touch and contactor burnt up . I condemned the compressor but a week or two later another tech went to start repairs and found the compressor was good, so it obviously had open winding on thermal overload even though it was normal temperature at the time, should that compressor be replaced anyways? Should it have been Megged maybe ? I suspect my boss didn't want to replace it because it was already a replaced compressor but the techs that replace it the first time left the coils plugged and it was tortured. The cut and dry diagnosis's are easy, its these borderline ones that are hard to judge.

  4. Joeyy Sossa says:

    Great information…I would like to hear from you on a video an explanation on how a contactor works…I hear the term ""open contactor""or ""contactor fail""can you please explain that on a video.

  5. Joeyy Sossa says:

    Have a blessed day…I have a question how important is it to remove the valve stem from the service line when performing a vacume???…Im thinking of buying a valve stem removing
    tool its called Appion valve stem removing tool..is it worth the purchase???

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