| How to Determine if the Duct Cleaner Did A Thorough Job |
| By U.S. Environmental Protection Agency U.S. Environmental Protection Agency |
Published
02/16/2006
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Duct and Air Vent Cleaning
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How to Determine if the Duct Cleaner Did A Thorough Job
If you answer "No" to any of the questions on the checklist, this may indicate a problem with the job. Ask your service provider to correct any deficiencies until you can answer "yes" to all the questions on the checklist. Post Cleaning Consumer Checklist | Yes | No | | General | Did the service provider obtain access to and clean the entire heating and cooling system, including ductwork and all components (drain pans, humidifiers, coils, and fans)? | | | | Has the service provider adequately demonstrated that duct work and plenums are clean? (Plenum is a space in which supply or return air is mixed or moves; can be duct, joist space, attic and crawl spaces, or wall cavity.) | | | | Heating | Is the heat exchanger surface visibly clean? | | | Cooling
Components | Are both sides of the cooling coil visibly clean? | | | | If you point a flashlight into the cooling coil, does light shine through the other side? It should if the coil is clean. | | | | Are the coil fins straight and evenly spaced (as opposed to being bent over and smashed together)? | | | | Is the coil drain pan completely clean and draining properly? | | | | Blower | Are the blower blades clean and free of oil and debris? | | | | Is the blower compartment free of visible dust or debris? | | | Plenums
| Is the return air plenum free of visible dust or debris? | | | | Do filters fit properly and are they the proper efficiency as recommended by HVAC system manufacturer? | | | | Is the supply air plenum (directly downstream of the air handling unit) free of moisture stains and contaminants? | | | | Metal Ducts | Are interior ductwork surfaces free of visible debris? (Select several sites at random in both the return and supply sides of the system.) | | | | Fiber Glass | Is all fiber glass material in good condition (i.e., free of tears and abrasions; well adhered to underlying materials)? | | | Access
Doors | Are newly installed access doors in sheet metal ducts attached with more than just duct tape (e.g., screws, rivets, mastic, etc.)? | | | With the system running, is air leakage through access doors or
covers very slight or non-existent? | | | | Air Vents | Have all registers, grilles, and diffusers been firmly reattached to the walls, floors, and/or ceilings? | | | | Are the registers, grilles, and diffusers visibly clean? | | | System
Operation | Does the system function properly in both the heating and cooling modes after cleaning? | | |
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