Reduce Attic Fan Vibration

A significant amount of that cooling is likely to come from conditioned air being sucked up from the house below.

Reduce attic fan vibration.

Feel the drywall inside the home that is closest to the fan location for vibration. One reason power attic ventilators don t help in my original article i focused on makeup air. Due to regular wear and tear these bearings can become worn out or lose their lubrication ability. If it s an electric fan turn the mains off.

If you feel any vibration of building components you can be sure it is being transferred back into the building. Crappy fan or improper mounting. Remove the current worn out bearings and replace them. Detach the fan from the power source.

Turn the power back on to help dry the blades and see if the fan still vibrates. A newly installed attic fan vibrates. You need to secure the screws in place more tightly by rotating the screwdriver clockwise. If the fan itself is touching any building components adjust the fan supports so it does not do this.

In order to get rid of the hum you need to either operate the fan at a low speed or replace the fan with a new one that has more blades. Attic is 1 500 sqft. The lateral deflection is minimal think back massager not a ceiling fan with one blade. Before inspecting individual parts of your attic fan and fixing anything make sure that the fan is detached from its power source.

Clean all the fan blades with a damp cloth then dry them off with a clean dry cloth. 1 5500cfm attic fan with thermostat and humidistat. A gable attic fan is attached to the attic wall by screws and if they are loose the vibration can cause an awful noise. That is i said that when you run a power attic ventilator in a typical house yes it will cool the attic down.

Tighten any loose screws. The attic fan tends to makes a humming noise when it has a few blades and is running at a high speed setting. If the fan is in the attic feel any framing that the fan is attached to or the pipe rubs up against. Manufacturer airvent inc model 53850 suggested use up to 2100sqft.

Attic fans also have small ball bearings that help lubricate the fan s movement.