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Thread: 10 ton goodman ac
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08-31-2011, 07:05 PM #1
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10 ton goodman ac
Having trouble with an ac unit, need help!!
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08-31-2011, 07:06 PM #2
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more info
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08-31-2011, 07:09 PM #3
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Head pressure does not move off of 150, comp runs for bout a min, suction drops to 50, internal overload takes it out
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08-31-2011, 07:21 PM #4
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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. 
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08-31-2011, 07:25 PM #5
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model ckl-120-3l
brand new set of hoses and manifold
it does have valves, thats how i read the pressures
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08-31-2011, 08:50 PM #6
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sure its OL and not low pressure switch?
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08-31-2011, 09:05 PM #7
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Amp draw?
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08-31-2011, 10:10 PM #8
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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.
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09-01-2011, 08:03 AM #9
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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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