Heat and air conditioning are delivered to each room of a mobile home through a network of ducts that are attached to vents. The ducts are usually constructed of aluminum tubes or rectangular shafts that run the length of the home. Double-wides are set up with two parallel ducts that are connected by a center segment. It gives the appearance of the letter H. The ducts need to be removed and periodically cleaned to avoid triggering allergy attacks when family members are mold-sensitive.

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Mobile home ducts need cleaning periodically to remove mold and mildew.

Preparing to Clean

Step 1

Turn off the central heat and air unit. Remove the vent and register covers by loosening the screws with a screwdriver. Turn the screws in a counterclockwise direction for removal.

Step 2

Suction out any loose dirt or debris using a vacuum cleaner with a hose attachment. Reach as far into the ducts as possible.

Step 3

Crawl under the mobile home and remove the bolts that hold the duct work in place. Do this by turning the bolts in a counterclockwise direction with an appropriate sized box-end or socket and ratchet wrench.

Step 4

Pull the ducts free from the vents with a gentle tug. Drag them out from under the mobile home and set them aside for cleaning.

Cleaning the Ducts

Step 1

Fill a garden pump sprayer with mold-killing sanitizer. Pump up the pressure and spray the cleaner down into the pieces of duct.

Step 2

Wet a string mop with water and push it down into the ducts. Scrub all areas of the inside surface thoroughly. Let the sanitizer soak on the ducts for a few minutes.

Step 3

Rinse the duct-work using a garden hose with a spray nozzle attachment. Let the ducts air dry for two hours.

Step 4

Reposition the duct-work back under the mobile home. Fit it snugly back into place. Use the wrench to turn the bolts back in the straps in a clockwise direction.

Step 5

Wrap each section with heat- and pressure-resistant tape. This will ensure there are no leaks in the duct system.

The Finishing Touches

Step 1

Soak each register and vent cover in one gallon of water mixed with 1 tbsp. of dish-washing liquid for one hour. Scrub with a cleaning brush and rinse with clear water.

Step 2

Pull the vent plate off the central unit and wipe clean with a damp cloth. Pull out the filter and vacuum the blower motor and coil. Replace the filter and close up the unit.

Step 3

Replace all of the register and vent covers. Secure them with the screws. Twist them clockwise to tighten. Turn the central unit back on.