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  1. #1
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    Mitsubishi PUHZ-ZRP140VKA condenser



    Hi all, a small shout for help please.
    I have a Mitsubishi AC that keeps freezing up.

    The condenser is turning into a solid block of ice and smashing up the fan blades. No fault codes, it will just run untill the damage is done!

    If the site are using the AC on constant heating mode, do Mitsubishi have a internal defrost command ? If so what thermistor activates this?

    TIA for any help



  2. #2
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    Re: Mitsubishi PUHZ-ZRP140VKA condenser

    Lots of things to check:

    Gas charge
    Outdoor thermister values
    Coil thermister values
    Etc.

    Here's a link to the Service Manual http://www.mitsubi****ech.co.uk/Data...SM_OCH527C.pdf

  3. #3
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    Re: Mitsubishi PUHZ-ZRP140VKA condenser

    Cheers Frank, I suspected thermistor issues, as someone has butchered it before! Sorry, I can't open the attachment!

  4. #4
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    Re: Mitsubishi PUHZ-ZRP140VKA condenser

    It's a web site link not an attachment. Looks like it didn't paste correctly. I'll have a look
    Last edited by frank; 27-04-2021 at 05:30 PM.

  5. #5
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    Re: Mitsubishi PUHZ-ZRP140VKA condenser

    It's the site language editor that does it Frank, your link was fine before the astericks struck.

    Try this https://tinyurl.com/9x9m7za5
    Last edited by Brian_UK; 27-04-2021 at 07:10 PM.
    Brian - Newton Abbot, Devon, UK
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  6. #6
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    Re: Mitsubishi PUHZ-ZRP140VKA condenser

    Outdoor coil probe main suspect if not going into defrost.

  7. #7
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    Re: Mitsubishi PUHZ-ZRP140VKA condenser

    Thankyou Brian, I've got the info downloaded 👍🏼

    Tayters, again thanks, I think we're on the same page. Thermistor issues.

    I was unsure as the weather or not, the condenser still defrosted its self when on "heat mode" or "auto cycle" I guess if the coil probe is reading correctly, it should defrost either way ?

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