Electrical Tester I Use:

Full process of locating the problem with a walk in freezer condenser. Please let me know if you would like to see more videos done in this format.

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18 thoughts on “Walk In Freezer Condenser Troubleshooting Full Service Call

  1. Brian Mutascio says:

    I know on single phase , you can add hard start kit , once the compressor gets cooled and thermal switch closes, but not sure if there is a hard start method for 3 phase because they don't use capacitor.. Great video ! How were the winding OHM readings ?

  2. Brian Mutascio says:

    Perhaps compressor was over amping above RLA, during normal run, then most likely compressor is toast. I know over amped compressors show thermal overload symptoms as outside latent and ambient conditions increase. How old is the compressor?

  3. Wael Audi says:

    Hey Benjamin you have great videos easy to learn but I have a question can I add a 521 hardstart kit to my walk-in cooler compressor and can you send me a link how to wire it it’s a Copeland compressor and thanks

  4. Rookie Refrigeration says:

    If your contractors pulled in, there’s no need to check safeties. Immediately go to compressor peckerhead and feel top of compressor.
    Only thing I would have tried is reverse the rotation to see if it would turn over. But that’s just fishing really. Good job. Good troubleshooting

  5. hvac01453 says:

    Holy moly you are a young kid, good for you… but I see you don’t believe the reading you have with your test instruments. After you check for voltage, you check then double check, then triple check. You can see

  6. hvac01453 says:

    You knew the compressor wasnt running with the contractor pulled in. What does that tell you??.??? See if the compressor is overly hot on top. Check for three phase on the outlet of the contactor first, then see if all three legs on the compressor are intact with power. When I feel a hot compressor, I know the ol is open.
    Checking the Hp and lp is unnecessary because the compressor contacts are closed. I would want to know why the fans were off though. If they are controlled by a controller, jump it out. To see if they died and killed the compressor and why didn’t the hp open? Looks like a safety failed.

  7. hvac01453 says:

    What if only two of the 3 thermals closed and you energized the circuit and single phased the compressor, give it more time and ohm the compressor to know all three are closed.

  8. James Scott says:

    You shouldn't be preforming these checks with power turned on. You verified voltage first which is good. You can easily perform all of these tests without power to the unit once you've verified you have power. Which is much safer.

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