A) Ruud UPNJ-031JAZ (outside unit) trips circuit breaker (immediately) when put into heat mode.B) Tstat set to OFF, Fan to auto; circuit breaker reset to on; outside fan & compressor seem to pulse on for one second, then off for thirty seconds, this cycle will repeat indefinitely or until circuit breaker is turned off.C) Contactor seems to be fine (contacts move freely, holding coil pulls contacts closed when put into heat mode). This contactor has one side constant on (designed to only break circuit on one leg), other side normal spring movement.D) Start and Run capacitors test OK (my multi-meter has capacitor test mode)E) Heat strips come on when outside unit trips breakerAny suggestions?
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