How to Silence Noisy Gable Attic Fans

What You'll Need
Screw Driver
Gable Attic Fan
Fan Bearing Oil

Gable attic fans are specifically made for the attic wall and are used to remove hot air from inside the attic to the outside of the house. People living in warm climates tend to have these installed in their attic in order to keep their house cooler by removing some of the hot air. They are commonly powered with electricity, but they can be solar powered, which is a perfect way to cut the energy bills in warm climates.

Step 1 – Detach the Gable Attic Fan from the Mains

It is important for the gable attic fan to be detached from the power source before any work is carried out. If the fan is powered by electricity, then turn the mains off. If the fan is powered by solar panels, then turn these off.

Step 2 – Change Blades

First, purchase new blades so that you can replace them once the old blades are removed. Second, remove the old blade by rotating it so that the Allen screw is over the flat side of the blade, and remove it from the shaft without hitting the motor. Third, place the new blade into the shaft carefully, and rotate it to the same position as the other blades. Finally, repeat these directions until all the blades in the gable attic fan have been replaced.

Step 3 – Lubricate Bearings

You need to make sure to use oil that is specific for the job because if you use general oil, it can clog up the workings of your gable attic fan. Bearings do not need lubricating frequently, as they rarely cause problems, but if you believe this could be the cause of the noise, then pour a small amount of oil into the oil pan, and turn the fan on. This will automatically oil the bearings.

Step 4 – Tighten Screws

A gable attic fan is attached to the attic wall by screws, and if they are loose, the vibration can cause an awful noise. You need to secure the screws in place more tightly by rotating the screwdriver clockwise. If this does not stop the noise, then slide a washer over the screw so it will be positioned between the screw and the fan.

Step 5 – Replace It

If steps 1 through 3 do not fix the problem, then it is time to replace the gable attic fan. These fans only have a short lifespan of two or three years, after which the motor will begin to rust, and this is financially not worth repairing. First, turn off the fan from the mains. Second, unscrew the screws fixing it to the attic wall. Third, purchase a fan, and reinstall it by screwing it in place and reconnecting it to the mains.

Step 6 – Turn on Electricity

Turn on the electricity again either by enabling the solar panels or turning the household’s mains back on. This step should be carried out after every individual step is complete.