Inspection Tasks Winter Spring Summer Fall/Autumn Cooling System Maintenance - Clean evaporator and condenser coils X - - Inspect refrigerant levels and check for leaks X X X X - Adjust and test temperature/pressure controls X X X X - Record system volts, amps, and discharge pressure X X X X Electrical System Maintenance - Inspect wiring, breakers, and contactor contacts X X X X - Tighten electrical connections X X X X - Test fan motor operation; lubricate as needed X X X X Mechanical System Maintenance - Inspect fans, belts, and bearings; lubricate as needed X X X X - Check compressor and drive motor operation X X X X Filtration & Drainage Maintenance - Clean or replace air filters X X X X - Clean condensates drain as required X X X X Heating System Maintenance - Inspect gas or electric heaters and test safety controls X