There were 2 issues with the equipment. The outdoor unit was flashing multiple low pressure trip fault codes on the comfort alert. Refrigerant oil was all inside the suction line insulation. I sprayed the braze joint with soap bubbles and a very small leak shown. I used the leak detector to confirm. I pumped the system down and brazed both high and low joints and flushed with nitrogen and pulled into a deep vacuum. I opened the valves back up and ran the unit and added refrigerant to bring operating pressures to match data sheet and also have normal temperature rise. The second issue was that y1 and y2 were jumped out together at the air handler control board. I had heard the blower ramping up and down and it was effecting the pressures. I removed the jumper wire. I checked thermostat configuration and cycled the unit once more and also tested defrost while I was there. Unit operating normal. I took a picture of the leaking braze joint. I called the service manager to let them know