2004 38yc042 Carrier heat pump, copeland compressor, popping c/b at fuse panel when ac comes on. MAX amp pull was 97A, measured at L1 coming in to the contactor cuz it was convenient, pops breaker right away.
Did not notice any 'smoked' areas, wires or boards. There was some green fluid at the start capacitor which previous tech had installed lying on its side.
Pulled compressor plug off and ohmed all 3 to ground, they all 3 had infinite resistance and to corrosion at all. Between the 3 terminals at the compressor I measured 1.4, 2.9, and 3.2(s-r).
Left the compressor unplugged and turned on ac and the condenser fan motor came on and stayed running. Disconnected the cch, hooked up the compressor again and the breaker popped right away, disconnected compressor plug and condenser fan runs.
Q- should I have checked the amp pull with my meter around the common wire between compressor and contactor?
Can a compressor that does not show a direct short to ground be causing the breaker to pop?
Did not notice any 'smoked' areas, wires or boards. There was some green fluid at the start capacitor which previous tech had installed lying on its side.
Pulled compressor plug off and ohmed all 3 to ground, they all 3 had infinite resistance and to corrosion at all. Between the 3 terminals at the compressor I measured 1.4, 2.9, and 3.2(s-r).
Left the compressor unplugged and turned on ac and the condenser fan motor came on and stayed running. Disconnected the cch, hooked up the compressor again and the breaker popped right away, disconnected compressor plug and condenser fan runs.
Q- should I have checked the amp pull with my meter around the common wire between compressor and contactor?
Can a compressor that does not show a direct short to ground be causing the breaker to pop?
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