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  1. #1
    Join Date
    Jun 2003
    Posts
    11
    I HAVE AN OLDER UNIT AND WHEN THE COMPRESSOR KICKS ON THE HIGH SIDE PRESSURE KEEP RISING UNTIL IT KICKS OUT ON OVERLOAD, MY QUESTION IS COULD IT BE A BAD TXV VALVE OR IS THE COMPRESSOR SHOT AND HOW DO I KNOW WHAT THE REAL PROBLEM IS?

    [Edited by gjw-klw on 06-11-2005 at 06:55 PM]

  2. #2
    Join Date
    Nov 2000
    Location
    Eastern PA
    Posts
    68,941
    Don't sound like a problem with the compressor.
    Government is a disease...
    ...masquerading as its own cure…
    Ecclesiastes 10:2 NIV


  3. #3
    Join Date
    Mar 2005
    Location
    Suppy NC
    Posts
    4,513
    dont sound like txv either

  4. #4
    Join Date
    Jan 2004
    Location
    Lancaster PA
    Posts
    67,903
    Best way to find out is call a service company.
    Contractor locator map

    How-to-apply-for-Professional

    How many times must one fix something before it is fixed?

  5. #5
    Join Date
    Jun 2003
    Location
    Jacksonville, FL.
    Posts
    4,313
    Sounds like a restriction.

  6. #6
    Join Date
    May 2000
    Location
    Indianapolis, IN, USA
    Posts
    34,079
    yea, what does the low side do?

  7. #7
    restriction and overcharged. take freon out till you get about 12 degrees subcooling. if superheat high then remove bulb and see if suction goes up and superheat down if not replace txv.

  8. #8
    Join Date
    Jul 2004
    Location
    West TN
    Posts
    983
    I say the doodad is plugged that releases the heat from the freon turning into liquid. Can't release heat makes pressure go up. I've seen weelows and cotnwod do it alot.
    I bet its blowing all flat right now instead of a nice V.
    Once thats fixed... its best to double check the superheat or subcool. Lots of times, after you fix it, your superheat goes up and your subcool goes down.

    Restriction in lineset would make pressure spike up momentarily then drop. Never seen one go up high enough to trip a high pressure switch though. Arghhh take that back... I have run across a 30 ton semi-hermetic do it. King valve came apart inside and plugged the discharge port. Only time I ever seen that happen though.

    I've seen heat pumps do it too when the rev valve stuck or not energized for cool

  9. #9
    Join Date
    Mar 2005
    Location
    Suppy NC
    Posts
    4,513

    Talking

    now wormy you know that doodad thingy is self cleaning
    and and those darn weelows wont work with out the cotnwod next to them. and they all will melt if the whoosithingy with the little hole that gets them wet pees on them

  10. #10
    Join Date
    Feb 2002
    Location
    Yuma, Arizona
    Posts
    925
    I have a question. How about the outdoor fan motor?

    Or condenser coil plugged? Or overcharged? Or ????????

    You should call a Professional to look at this.
    And if you say you are...... Go to another trade PLEASE...


    Now if I am a little tuff on you -So be it! You may have checked the items above but you did not give enough information to go on. And it is very un-professional to just condemn a compressor so fast.

    My thoughts, Yuma
    What is snow? Is it that white stuff in a freezer?

  11. #11

    Hmm

    if the high side pressure rises gradually, it's a restriction. and that could be restricted in the line drier, the tvx, a kink in the line etc etc. yes, by all means call a pro...

  12. #12
    Join Date
    Jun 2003
    Location
    GA
    Posts
    395
    Originally posted by special ed
    Sounds like a restriction.
    LL blockage does'nt not cause head to rise (watch any pump down unit at end of cycle) unless way over charged to the point that the high side can't store the charge.

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