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  1. #1
    Join Date
    Nov 2014
    Location
    Australia
    Posts
    7
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    0

    New boat, New problem



    Hi again guys,

    Ive got a problem with a system on another boat that im unsure of the cause.
    The fridge temps all seem to be ok however the compressor has recently started short cycling, and then continues to "run on" after it has cut out?
    Much the same as when a hot carby engine will carry on spluttering and turning over after its been turned off.

    It does this almost every time and shakes for about 10 or so seconds, even if i hold it from rocking its forcibly rocking against my hand.

    Is this a common problem? Would this be caused from the motor itself wanting to continue running or is the gas pressure forcing the pistons to carry on?

    Im trying to upload a video of the issue at the moment, will share when its done

    Any help would be much appreciated!

    Cheers!
    Mark



  2. #2
    Join Date
    Dec 2007
    Location
    ireland
    Age
    54
    Posts
    275
    Rep Power
    26

    Re: New boat, New problem

    Is it a scroll compressor

  3. #3
    Join Date
    Nov 2014
    Location
    Australia
    Posts
    7
    Rep Power
    0

    Re: New boat, New problem

    No i believe its a Copeland style compressor.
    Talasea fridge compressor.jpg

  4. #4
    Join Date
    May 2007
    Location
    Auckland
    Age
    74
    Posts
    3,362
    Rep Power
    37

    Re: New boat, New problem

    Possibly on a pump down cycle with a solenoid valve controlled by temp control. The liquid receiver too small and the whole system starts to hydraulic, and the rock and roll of compressor.
    Would be better to control compressor with temp control and cycle solenoid with compressor.
    Just a thought, could be totally wrong. Alternatively install a larger receiver vessel.
    magoo

  5. #5
    Join Date
    Dec 2007
    Location
    ireland
    Age
    54
    Posts
    275
    Rep Power
    26

    Re: New boat, New problem

    I would imagine taking off the head and checking the discharge reeds would be the first port of call.I would think it should go out out high pressure if it was locking up hydraulically as the hp switch seems to go straight into the head.

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