Sometimes you can get away with replacing the fan control. For example, a rattling sound may mean loose parts. There a variety of solutions you can try. Electrical buzzing sound only when lights are on, not when fan is on. Capacitors control the fan speed in a way that does not produce a hum. In a ceiling fan, it’s used to regulate speed, change direction, or for another use. How to Stop the Noise. Increases speed of pulsating with increase in speed of fan. If you’ve ever had the misfortune of trying to sleep under a malfunctioning ceiling fan, you’ll know exactly what I mean. Dimmer switches were never intended to be used with ceiling fans. Most ceiling fans control speed by use of capacitors. The final thing that can cause humming or buzzing noises in the ceiling fan is the capacitor. I am also using Lutron Maestro dimmer wall switches. The humming sound when I switched it on. Two are Hampton Bay and one is westinghouse. Ceiling Fan Humming Noise. Because this not the proper way to control fan speed, you will hear a humming noise. Same noise. I discovered that it was due to the hole in the ceiling for the extraction being too tight this tightened in on the fan and prevented it from operating freely. Recently as in yesterday, I installed a new 42 inch ceiling fan in my bedroom to help with air flow during the hot summer months, however there seems to be a small detriment in the quality of the fan. The dimmer control should be replaced with standard speed controls. If someone installs a variable control ahead of the fan, and the fan switch is on maximum speed, reducing the speed via the variable control, will cause the fan to hum. Along with a humming noise, other … Variable fan speed controls are operated by solid state electronics which often can create a hum because they control the fan's … 2) Remotes The fan makes the same noise at every speed. First i tried replacing all the bulbs. Ceiling fan pulsating, humming noise. Different fan noises can be a CLUE as to what the problem may be. Standards for ceiling fans are frequently revised so it’s important that the model year, specifications, and speed control match one another. Capacitor electronics in ceiling fans create distinct speed "steps" like high, medium, and low. If you suspect your motor is to blame, because you hear a humming, grinding or buzzing sound, it may be time to replace your noise ceiling fan. A ceiling fan making noise can be from a variety of reasons. Doesn't get louder though. I installed 3 ceiling fans today, with the help of an electrician friend. When you adjust the speed a little lower the fans start to make a humming or slight buzzing sound. A new one with an anti-hum feature could fix your problem. Knowing what causes a humming ceiling fan is all fine and good, but what you really want is a way to make it stop! Lights off, quiet as the dead. The cheap ceiling fans tend to be more noisier than well builted fans are. 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