How do you clean the condenser and evaporator coils for cental air?

A certain amount of dust will accumulate on your evaporator coils, even if you have been replacing your a/c filter regularly. Dirty evaporator coils can cause the your air conditioning system to become inefficient and freeze up, as the coils become insulated with dust, creating a barrier between the warm air in your house, and the cold evaporator coils.

The evaporator coils can be removed from the air handler using tools you will certainly have around the house, i.e. screwdriver, wrench. You must first remove the access panels. Once removed, the condenser unit can be dislodged, and taken outside to be washed off with a hose, and then reinstalled. Freon runs through the evaporator coil. so you may need to bleed the freon from the system before removing the coil, and charge back to proper pressure. For this step, you will need to contact an HVAC technician, as freon is a regulated substance.