On arrival noted that thermostat is blank. Found no power to system, circuit breaker tripped. Checked for grounded components, everything looks ok. Reapplied power and breaker trips as soon as contactor closes. Removed compressor from circuit and reset breaker. Everything else working properly, issue is internal to compressor. Quoted to replace compressor. Customer approved quote, need to order parts Returned with new compressor Recovered refrigerant from system, removed compressor, installed new compressor, pressure tested for leaks, evacuated system, added refrigerant to system according to data tag, ran system and completed checklist. Everything working normally at this time.