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  1. #1
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    Panasonic 3ton ac



    Good day everybody!
    Panasonic outdoor keeps running and does not stop even while the indoor unit is turned off.

    The outdoor only stop when the main power source breaker is switch off.

    I'm suspecting the indoor board/ panel.
    What could be the problem? Thanks



  2. #2
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    Re: Panasonic 3ton ac

    Model numbers might help us to see what system you are talking about
    I'm back on the Pale

  3. #3
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    Re: Panasonic 3ton ac

    The model number...CS-C28FF
    thanks!

  4. #4
    Brian_UK's Avatar
    Brian_UK is online now Moderator I am starting to push the Mods: of RE Site Moderator : and general nice guy
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    Re: Panasonic 3ton ac

    Probably a power contactor stuck.
    Brian - Newton Abbot, Devon, UK
    Retired March 2015
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  5. #5
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    Re: Panasonic 3ton ac

    Thanks!
    But the indoor takes the power from the power source,
    While the outdoor takes power from the indoor.

  6. #6
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    Re: Panasonic 3ton ac

    As Brian says, it is probably a stuck/welded relay. You will need to trace the power from the indoor pcb with a multimeter.
    I'm back on the Pale

  7. #7
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    Re: Panasonic 3ton ac

    Thanks!
    I will do just that

  8. #8
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    Re: Panasonic 3ton ac

    C2423848-0506-4990-8F7D-F9CF89A4B62C.jpgBrian is right. The mag. relay must have stuck in make position, once you tap it, it may start working but later it would again start giving you the problem. Find the picture of the power card, I hope it helps.
    I maintain, everything I have, myself.

  9. #9
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    Re: Panasonic 3ton ac

    Thanks a lot Vikky

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