Tech found 1.5 ton Trane split system for the bonus room to be running on arrival. Tech confirmed blower, outdoor fan motor, and compressor are amping normally. Tech found system not cooling due to being significantly low on R22 refrigerant. Factory charge is 5 lbs 10 oz. Tech estimates system 4-5 lbs low. Tech let customer know that we can perform a leak search and leak repair, but due to cost of R22 leak repairs and EPA phase out of R22 refrigerant, tech would recommend replacing system instead. To get system temporarily cooling by charging up system, tech quoted $998.86 including tax. Tech also found Trane start kit failed. Quoted $393.10 including tax to replace start kit to ensure compressor starts under peak load. Customer approval leak search. Tech swept outdoor unit and found no refrigerant leaks. Tech found indoor coil leaking near the center bottom Ubends on the door side of air handler. Uploaded video of detected location. Due to advanced corrosion, repair to existing in