Turn the air conditioner off before you start. Retract the coolant into the refrigerant line and disconnect the condensation drain line from the air handler. Use the diagrams and owner's manual that came with your air conditioning unit to correctly identify the parts.
Disconnect the electrical cord from the outlet, and then disconnect it from the air handler. Take out the fan system, or squirrel cage, coil and air handler casing.
Vacuum out the dirt stuck on the inside of the air handler. Squirt the antimicrobial cleaning solution on the coils of the air handler. The solution will turn the coils white as it cleans. Rinse the solution off using the garden hose. Repeat this process with the squirrel cage. Allow all pieces an hour of drying time before putting them back into the air conditioning unit.
Things You Will Need
- Adjustable wrench
- Antimicrobial cleaning solution
- Garden hose
- Cleaning an air handler requires fairly extensive air conditioning knowledge.
- Dirty air handlers can circulate unpleasant smells through your house.