Our maintenance consists of cleaning the coil (which lowers your energy consumption and prevent the unit from working harder which cause parts to fail), cleaning the unit, changing filters, cleaning the drain line (which prevents water damage to your ceiling and floors causing mold and expensive repairs), removing the leafs from the condenser (which cause rust leading to refrigerant leaks and poor performance), checking amps, volts, relays, capacitors, compressors, motors, and much more.