System had 0.0 PSI of refrigerant Got authorization to pressure test, evacuate, and recharge system Found a hole inside the heatpump (outdoor unit) The Compressor wires were resting against a refrigerant line, mechanical vibration wore the wire insulation down. The bare wire caused a dead short circuit and blew a hole in the line Using torches and brazing rod, filled the hole. Pressure tested to 410 PSI Held for 15 minutes Evacuated system to 350 microns 3 times Weighed in 7lbs of r410a System operating normally at this time.
