HOW TO CLEAN AN AIR HANDLER If you are sick of that nasty smell that is coming from your air handler, it sounds like it is about time to pull it out and clean it. I am going to show you step by step how to get the air hander out, and how to clean it and reinstall it so you have fresh, clean smelling air again. 1. Shut off the power to the unit 2. Disconnect the wiring 3. Retract the coolant in the refrigerant line to avoid any spills 4. Remove the squirrel cage fan 5. Remove the air handler casing 6. Start cleaning the air handler by vacuuming away the dirt 7. Use an antimicrobial soap & garden hose to clean the fan 8. Put the new air handler back together 9. Cut new duct board to fit snugly around the sides of the air handler 10. Tape seems with aluminum tape and use mastic adhesive ...
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