Upon arrival system was on cool and thermostat was satisfied at 70 Asked homeowner for filters and container of white vinegar Replaced old filter with provided new filter Checked deltas and had a pretty low Delta of 12° but return air was same temp as thermostat ask Checked blower motor and it is in good condition Checked electrical components and all were tight and secure Checked Evap coil and it is clean and in good condition Checked drain line with vinegar and chased it with 2 gallons of water and no back ups Moving to the outdoor condenser unit checked disconnect and it's in good condition and functioning good Flipped disconnect and checked capacitor, in tolerance Took top cover of and checked condenser fan, in good condition Cleaned coils from inside out then rinsed off sides Checked inrush and running amps of compressor and fan, both at our under rated amount Last thing I checked was refrigerant levels and pressures, which I noticed my pressures were good but my subcool was lo