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wetbar 02-17-2014 02:56 PM

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

beenthere 02-17-2014 04:19 PM

A winding to winding short.

yuri 02-17-2014 05:35 PM

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.

wetbar 02-18-2014 08:43 AM

no it was a totally new system 7 years ago. Both times it happen in a snow or ice storm

yuri 02-18-2014 05:32 PM

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.

wetbar 02-18-2014 05:40 PM

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?

beenthere 02-18-2014 06:11 PM

If power flickers off. The defrost boards 5 minute delay should prevent the compressor from trying to start until the delay times out.

biggles 02-18-2014 07:12 PM

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...

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