Question about Office Equipment & Supplies
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Posted on Jan 02, 2017
SOURCE: noisy fan
Quite possibly getting past it's used by date.
The other thing to check for is the deaded dust. If the fan is covered in dust, it will not cut cleanly through the air and make noise.
Do not use any cleaning soloutions to get rid if the dust, instead, use an old toothbrush. This will be a little tricky if it's one of the fans underneath, but if you cannot remove the fan to clean it, then have someone hold the projector up, so the hole faces down..and the dust will fall that way as well instead of back into the projector.
Posted on Apr 17, 2008
Fan noises can be caused by wear or dirt. If they are worn the bearings might be gone or going and cause a squeel type of sound. That can only be fixed by replacing the fan. The fans are not expensive but the labout can be.
The usual problem is just caused by dust and dirt built up on the fan blades. The blades get out of balance and then rub or cause noises. If this is left long enough then it can cause bearing damage. If you catch it before then all it needs is a cleaning. You can do this by mechanically stopping the fan so it doesn;t spin and then blwoing compressed air to blow off the dust. The cpu fan and the powersupply fan both with clog up from dust and cause heat problems as well as the noise. Any of these fans are replaceable without buying major parts if needed. ie you don;t have to buy a new power supply, just open the power supply and put a new $5 fan in it. If the computer shop isn;t very good they will force you to buy the power supply instead of fixing the fan.
It's a bit hard to know what the cause is without being able to hear the fan but those are the two ways the fans have problems.
Posted on Jun 14, 2010
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