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Click Here for Printer Friendly Version General Did the service provider obtain access to and clean the entire heating and cooling system, including duct work and all components (drain pans, humidifiers, coils, and fans)? Yes No 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.) Yes No Heating Is the heat exchange surface visibly clean? Yes No Blower Are the blower blades clean and free of oil and debris? Yes No Is the blower compartment free of visible dust and debris? Yes No Cooling Components Are both sides of the cooling coil visibly clean? Yes No If you point a flash light into the cooling coil, does the light shine through to the other side? It should if the coil is clean. Yes No Are the coil fins straight and evenly spaced (as opposed to being bent over and smashed together)? Yes No Is the coil drain pan completely clean and draining properly? Yes No Plenums Is the return air plenum free of visible dust and debris? Yes No Do filters fit properly and are they the proper efficency as recommended by HVAC system manufacturer. Yes No Is the supply air plenum (directly down-stream of the air handling unit) free of moisture stains and contaminents? Yes No 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.) Yes No Fiberglass Is all the fiberglass material in good condition (i.e., free of tears and abrasions; well adhered to undrlying materials)? Yes No Access Doors and Covers Are newly installed access doors in sheet metal ducts attached with more than just duct tape (i.e., screws, rivets, mastic)? Yes No With the system running, is air leakage through access doors or covers very slight or non-exsistent? Yes No Air Vents Have all the registers, grilles, and diffusers been firmly re-attached to the walls, floors, and/or ceilings? Yes No Are the registers, grilles, and diffusers visibly clean? Yes No System Operation Does the system function properly after cleaning? Yes No If you answered "No" to any of the above questions, this may indicate a problem with the job. Speak to your contractor regarding these issues and ask him to make corrections to his/her work such that you can answer all the questions "Yes." Yes No