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Old 07-17-2011, 11:27 AM   #16
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AC Stopped Cooling??!!



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Old 07-17-2011, 11:30 AM   #17
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AC Stopped Cooling??!!


The plug wires are as follows: 1.) red is run and is connected via the terminals to one side of the contactor, 2.) black is common and is connected via the terminals to the other side of the contactor and, 3.) yellow is start and will be connected via the terminal to the 'herm' connection of the start capacitor.

granted sometimes it's not always the same colors. blue is also used as a start wire with those plugs.
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Old 07-17-2011, 11:33 AM   #18
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AC Stopped Cooling??!!


If the compressor had proper continuity was the new plug bad? How did you fix it.
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Old 07-17-2011, 11:36 AM   #19
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Those would be the wires I previously was referring to that you remove from the contactor (two wires, one black and one red) and the one at the capacitor (herm, the yellow in this picture)) to completely take the compressor off circuit.

Then you make certain those wires are capped off or aren't in danger of touching any live electricity and you flip the breaker on. If the breaker does not trip and the fan works then it's the compressor.

Granted sometimes that plug can go bad and trip the breaker as well as the two 120 volt feeds arc inside of the plug and touch each either, causing electrical feedback. Continuity through the plug would have to be tested.

If by chance that ends up being the case than it would be your very luckiest of days, my friend.
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Old 07-17-2011, 11:41 AM   #20
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AC Stopped Cooling??!!


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If the compressor had proper continuity was the new plug bad? How did you fix it.
once I put a new plug on to the compressor I tested for continuity through the leads and it finally showed OL. I put a new compressor in and it's all good.

I guess I should also say that the unit was off for 24 hours so perhaps it was trying to close or did or was closed ( the windings had been cooled off) but was weak..?

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Old 07-17-2011, 11:45 AM   #21
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AC Stopped Cooling??!!


That compressor cost $466 from carrier, before tax and then there was $144 for the jug of R-22 (had she wanted a new 22 unit which would've been dry charged then the freon would've been $99) and two filter driers, one bi-directional high side for the 3/8" line and one suction drier for the 3/4" side that I have to go and remove in a few days so the job is not over, not just yet.

Total parts cost for my sister: $672.84. Free labor, obviously. One year warranty.

Weird that they don't make bi-directional suction driers as well.

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Old 07-17-2011, 11:54 AM   #22
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AC Stopped Cooling??!!


Doc, where you buy the jug of R22 for $144?
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Old 07-17-2011, 11:56 AM   #23
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Doc, where you buy the jug of R22 for $144?
Carrier and the Carrier parts houses called Totaline. Goodman too. United A/C will match any competitors price if you tell them.
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Old 07-18-2011, 01:31 PM   #24
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AC Stopped Cooling??!!


Service Tech finally made it out, guess the compressor is shorted out inside the compressor. Now the question is what caused that? ....it seemed to be kicking on, just not blowing cool, until it started tripping the breaker!
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Old 07-18-2011, 01:37 PM   #25
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Service Tech finally made it out, guess the compressor is shorted out inside the compressor. Now the question is what caused that? ....it seemed to be kicking on, just not blowing cool, until it started tripping the breaker!

Low refrigerant, dirty coil, will cause the compressor get very hot and damage the windings or electrical problem.
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Old 07-18-2011, 03:11 PM   #26
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Power surge.
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Old 07-18-2011, 04:35 PM   #27
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Low refrigerant, dirty coil, will cause the compressor get very hot and damage the windings or electrical problem.
Supposedly refrigerant was fine, the coil looks clean, the filter wasn't too bad and the outside unit was a bit dirty, but I don't think it was bad enough to cause any major issues as it still wouldn't run after cleaning it, unless it was already shot at that point. The dirty outdoor unit was some dirt that the dogs had threw on it from digging a hole trying to stay cool....I still don't think it was that bad. Hmmm....
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Old 07-18-2011, 04:37 PM   #28
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Power surge.
Well I believe the electric company replaced a blown transformer last monday as our power was out for a few hours and my wife thought they were taking one down....

Guess we may not know for certain, but the good news is the unit was installed 7/20/2006 and it has a 5yr warranty that covers parts, labor, etc....

Thanks for the feedback!
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Old 07-18-2011, 04:51 PM   #29
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Service Tech finally made it out, guess the compressor is shorted out inside the compressor. Now the question is what caused that? ....it seemed to be kicking on, just not blowing cool, until it started tripping the breaker!

Improper installation: no vacuum pulled at time of installation means moisture (from the air) and other non condensibles mixing with the refrigerant equaling premature "night night" for the compressor.
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Old 07-18-2011, 05:02 PM   #30
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AC Stopped Cooling??!!


especially if the old condensing unit (compressor) was a burn out and the line set was not nitrogen purged and a vacuum not pulled. when refrigerant meets electricity via a grounded out compressor or shorted windings inside of the compressor the result is acid and that acid meeting the new compressor equals shorted or grounded out windings of said new compressor.

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