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  1. #1
    just installed a goodman AEPT060-001-A-1 WITH A CPLT 48-1 WITH A TH8321U1006 T-STAT. UNIT WORKS GREAT EXCEPT EVERY ONCE IN A WHILE COMPRESSOR IS GOING OUT ON INTERNAL OVERLOAD. PRESSURES ARE EQUALIZING DURING OFF CYCLE. START UP AMPS USUALLY AROUND 35 AMPS EVERY ONCE IN A WHILE AMP DRAW GOES UP TO BETWEEN 95-125 AMPS ON START UP AND THERE IS A LOUD BANG WHEN COMPRESSOR STARTS. ANY IDEAS

  2. #2
    Join Date
    Mar 2004
    Location
    SE Michigan
    Posts
    17,943
    What are your operating pressures, length of line set, size of line set, TXV or fixed, super heat/subcooling?
    and most importantly, why are you yelling? and is it single or three phase, recip. or scroll?

    [Edited by coolwhip on 04-11-2005 at 12:40 PM]
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  3. #3
    line size is 3/8 head and 7/8 suction line run is 25 ft. scroll compressor, single phase,txv, 13 subcooling ,78# suction,160# head. not yelling just a typo error

  4. #4
    Join Date
    Aug 2003
    Location
    Fort Worth, TX
    Posts
    11,338
    Originally posted by npr bandit
    START UP AMPS USUALLY AROUND 35 AMPS EVERY ONCE IN A WHILE AMP DRAW GOES UP TO BETWEEN 95-125 AMPS ON START UP AND THERE IS A LOUD BANG WHEN COMPRESSOR STARTS.

    line size is 3/8 head and 7/8 suction line run is 25 ft. scroll compressor, single phase,txv, 13 subcooling ,78# suction,160# head.

    Just going off that little amount of info, it sounds like you may be overcharged and you're slugging liquid back to the compressor. Either that or check your pipe routing and/or consider adding a crankcase heater.
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  5. #5
    Join Date
    Mar 2004
    Location
    SE Michigan
    Posts
    17,943
    May be overcharged.
    Behind the ostensible government sits enthroned an invisible government owing no allegiance and acknowledging no responsibility to the people.

    Theodore Roosevelt

  6. #6
    Join Date
    Mar 2005
    Location
    Oklahoma City
    Posts
    6

    Smile

    "line size is 3/8 head and 7/8 suction line run is 25 ft. scroll compressor, single phase,txv, 13 subcooling ,78# suction,160# head. not yelling just a typo error"

    With a TXV metering device you should always have a start booster! The TXV will sometimes cause the compressor to have to start with a high head pressure. Good Luck

  7. #7
    need subcooling and superheat. sounds like your flooding and
    compressor locking up.

    txv or orfice

  8. #8
    Join Date
    Mar 2005
    Location
    Suppy NC
    Posts
    4,513
    i have found some scrolls need hard start
    lenox has a hard start kit for the hs26 and 27 just for this problem. they also recomend it for all units with txv
    also you may be over charged double check subcool and do super heat at the coil to make sure. what is the outside temp and inside temp

  9. #9
    Join Date
    Nov 2000
    Location
    Eastern PA
    Posts
    68,944
    That TXV is a bleed type that should not require hard start components. My money is on contaminants or partially blocked filter/drier.

    Check the subcooling.
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    ...masquerading as its own cure…
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  10. #10
    Join Date
    Nov 2000
    Location
    Eastern PA
    Posts
    68,944
    Also, check to what speed selection that VS blower is set at. If it was not reset for that heat pump it is running way too high.
    Government is a disease...
    ...masquerading as its own cure…
    Ecclesiastes 10:2 NIV


  11. #11
    Join Date
    Jan 2004
    Location
    Lancaster PA
    Posts
    68,069
    A little over charged?

    What was teh outdoor temp, and how long was it running when you took your readings.
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