Results 1 to 9 of 9
  1. #1

    10 ton goodman ac

    Having trouble with an ac unit, need help!!

  2. #2
    Join Date
    Jan 2011
    Location
    TN
    Posts
    93
    more info

  3. #3
    Head pressure does not move off of 150, comp runs for bout a min, suction drops to 50, internal overload takes it out

  4. #4
    Join Date
    Dec 2002
    Location
    SouthEast NC ICW & Piedmont Foothills
    Posts
    7,635
    this thing got a model #

    you sure the hoses are working?

    does this thing have service valves?
    It`s better to be silent and thought the fool; than speak and remove all doubt.

  5. #5
    model ckl-120-3l
    brand new set of hoses and manifold
    it does have valves, thats how i read the pressures

  6. #6
    Join Date
    Oct 2008
    Location
    Nashville ,TN
    Posts
    275
    sure its OL and not low pressure switch?

  7. #7
    Join Date
    Feb 2009
    Location
    Tallahassee, FL
    Posts
    6,010
    Amp draw?

  8. #8
    Join Date
    Apr 2009
    Location
    San Diego
    Posts
    75
    internal overload is usually caused by compressor getting too hot and that takes longer than 1 minute. Your low pressure switch will cause unit to shutdown as you explained. Quick way to check that is check for 24 volts across the low pressure switch. It will be 0 if all is good. It will be 24V it the low pressure switch opens. of course you will see 0 until the unit shuts down and the contactor plunger pops out then at the exact same time you will see 24 V at your meter.

  9. #9
    Contractor stays in and the fan stays running, company terminals shows open, its a fixed orifice system, could the problem be there?

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