AH Cleaned and treated drain line Looked over low and high volt components Got temp split and static pressure readings Checked heat Checked Uv bulb good till next visit Replaced filter 16x20x4 Replaced sm pan treatment CONDENSER Checked pressures Looked over low and high volt components Rinsed coil RECOMMENDATIONS 16x20x4 replacement filter UV replacement bulb SURGE PROTECTORS PROTECT SYSTEMS FROM SIGNIFICANT POWER FLUCTUATIONS The freeze Protection Lockout Switch, MODEL CPLS, is a temperature sensing control, used to act as a safety against Evaporator Coil freeze up. It is designed to mount on the surface of a 3/4" or 7/8” suction line. Electrically, it is wired in series with the "Y" lead from the thermostat or zone control panel, to the compressor contactor coil or relay. The switch breaks (opens) shutting off the compressor when the temperature of the pipe drops below 37 F. The switch will reset (close), restarting the compressor when the temperature of the pipe rises