Overtime due to lack of filter, replacement a buildup of debris and dirt and dust cake, the fan blades and fan motor as well as the evaporator cool causing a massive lack of airflow and depleting unit efficiency causing the blower motor compressor and outdoor fan motor to continuously run causing more wear and tear on the units. Preformed a pull and clean on all blower motors including, fan blades, fan housings, and blower motor itself. Dusted and cleaned all electrical components inside gas furnace housing. Performed chemical flush with water rinse cleaning on all evaporator coils. tested all units to ensure proper function and operation all units operating as they should at this time.