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LG LCS 26905 Fan won't stop squealing

I purchased this LG two years ago. I heard some squeaking from behind. It became nosier and now squeals. I can see the fan from the side. The fan isn't facing toward to exterior, but toward to coils. I vaccumed the dust, used a blowdryer to blow the dust. I sprayed a lubricant on the rod going to the fan. I even took a bendable straw and sprayed lubricant to the middle of the fan which is impossible to see. It helped just a tiny bit and now its just non stop. It's like Chinese Water Torture in our house. I don't even see a way to take the fan off to clean it. Please help!

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These fans have DC brushless motors, the stator is one piece with a disc in the middle. When these fans start to wear out the shaft begins to wobble, this distorts the the rotation of the shaft. This makes the stator disc touch the communtator.Generating the squealing that you are experiencing. But this fan might not be the problem. The freezer fan is behind the rear panel of the freezer draw. It is very hard to detect this problem because the fan spins but not fast enough to circulete the chilled air thru the freezer and refrigerator.

Posted on Aug 05, 2009

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I had a book written for you and remembered something basic I learned in electronics school and had to delete it all. Sigh. So with a smile I start all over and hopefully make this short.
Are you certain there is a belt?
Let's assume there is. A belt means a motor is spinning the belt which is spinning another pulley or "wheel". You could be correct that the belt needs to be changed. They stretch over time causing slippage. That is one way you hear "squeak". The other way which I hate and am dealing with on my car right now is the pulley or pulley's themselves.
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The bearings get too dry and they begin to, well, drag. That drag is the squeal you hear. Your warning sign that pretty soon they are going to stop dragging and just dry up and stop rolling completely. When that happens you may turn your fan on and hear a hum but the fan doesn't work. To simplify this for everyone, the ball bearings inside no longer roll so the fan no longer spins.
You may have a belt and two pulley's (or more like in a car) and have a good belt but a bad pulley. Most people throw away the product thinking it is no longer useable when all that is needed is to loosen a single screw in the middle of the pulley and replacing it with it's exact make giving the device another jillion years of use.
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