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Dometic Rooftop Heat pump is tripping AC breaker


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You need a amp probe to verify that the start cap is in the circuit and working, you can also short across the start cap terminals with the cap disconnected and then put your meter on the terminal and you will see the cap charging. But with the new hard start cap in the circuit and it still will not start then the compressor end of the compressor is lockup probably a bearing, the motor is OK but not the compressor so either replace the compressor or the whole unit but you will be hard pressed to find someone to replace just the compressor. 

This is the two main reasons for early compressor failure. 

1 running on hot days with a dirty condenser, this may not cause it to fail right away but over time the excesive heat damages the internal compressor parts.

2 running with a dirty evaporator, this will cause liquid getting back to the compressor, compressor can't compress liquids, it will also wash the oil off bearings and compressor parts causing them to lockup. 

Denny

Denny & Jami SKP#90175
Most Timing with Mac our Scottie, RIP Jasper our Westie
2013 F350 SC DRW 6.2 V8 4.30 Gears
2003 HH Premier 35FKTG Home Base Nebraska

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