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Step 1
Make sure that the power to the fan is off before you attempt any repairs. If your fan is controlled by a light switch you can turn this off, otherwise you may need to find the circuit breaker that controls the power to the fan or the entire room and turn off the power using that breaker.
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Step 2
Clean the fan thoroughly. Sometimes a buildup of dust or other debris can accumulate on the fan blades and cause the fan to become unbalanced which in turn causes the fan to become noisy. Generally the best way to clean the blades is using a slightly damp dust cloth or mild soap and water solution.
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Step 3
Replace any broken fan blades. When a fan blade is broken it can cause the flow of air to become disrupted around the fan creating an irregular rotation of the entire blade set. Most fan blades are easy to remove by loosening the screws that hold them in place using a screwdriver and swapping out the old blade with a new one.
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Step 4
Check to make sure that the entire blade unit is level. Occasionally these can be disrupted if they are bumped or something is accidentally thrown and it hits the fan. If it appears to be out of level simply grab the spindle with your hand and adjust it until it looks correct, then you can test the fan to see if your repair has fixed the problem.
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Step 5
Run the fan on a lower speed. If some of the internal components inside your fan are wearing out such as the bearings, you may be able to quiet the noise by simply running your fan on a lower speed that puts less stress on the mechanical components. Keep in mind that this will not be a permanent fix, but it may provide you with some relief until you are able to make the appropriate corrections or replace your fan altogether.
