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Old 02-17-2014, 02:56 PM   #1
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terminals blown out


What would blow out the terminals on a compressor? This has happen twice about 7 years apart. There was a snow storm, but we never lost power that we can tell. We did not have to set clocks or anything like that. But we heard a noise then lots of hissing and looked outside and saw freon going everywhere. Two of the three terminals have been blown out of the compressor.

Thanks for the help

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Old 02-17-2014, 04:19 PM   #2
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terminals blown out


A winding to winding short.

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Old 02-17-2014, 05:35 PM   #3
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terminals blown out


Did it happen on the same machine? If so they probably did not clean it up properly after the first burnout and left acid in the system which pooched this one. Time for a new system or some SERIOUS decontamination.
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Old 02-18-2014, 08:43 AM   #4
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terminals blown out


no it was a totally new system 7 years ago. Both times it happen in a snow or ice storm
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Old 02-18-2014, 05:32 PM   #5
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terminals blown out


very strange. sounds like the wiring outside or in the unit is getting wet or a short and grounding out the unit. if the breaker/fuses are too large or the unit not grounded properly that may be a problem. sounds more like a low voltage ( main supply) to the unit problem to me.
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Old 02-18-2014, 05:40 PM   #6
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terminals blown out


Here is my theory, When the power flickers the unit cuts off and tries to restart with high head pressure, because it just cut off. Maybe?
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Old 02-18-2014, 06:11 PM   #7
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terminals blown out


If power flickers off. The defrost boards 5 minute delay should prevent the compressor from trying to start until the delay times out.
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Old 02-18-2014, 07:12 PM   #8
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terminals blown out


had this Copeland compressor blow the slip Stak-Ons off coupe of times,had to sand the terminals clean and get straight in compressor slips.they have to go on with a niddle nose and be tight with no wire tension within the box... pieces of cut armaflex to keep wires from bouncing around straight AC here no HP...


Last edited by biggles; 02-18-2014 at 07:17 PM.
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