Arrived on site, homeowner complained of unit not keeping up with the set temperature. indoor temperature around 76° while the set point was 74. I waited for a little bit to see if the unit would kick on by itself which it did, and immediately shut itself off on a float switch error. Tested drain line and found water not draining and going up the service port after the P-trap. I blew out the drain line with nitrogen and then disassembled the drain line Connection to the front bathroom sink. I found a large amount of sludge blocking the half inch nipple elbow connecting to the bathroom drain. Reassembled drain line and blew out with nitrogen again and tested with several gallons of water. Drain line is draining properly at this time. Reviewed refrigerant pressures and temperature split from supply to return and found no issues. I also found the scheduling enabled on the thermostat. Homeowner had not set up, scheduling to his comfort on the app, so I disabled the scheduling so that the
