Question about Fans
When I turn on the fan, it makes a screeching high pitch noise. The manual states that the motor bearings are permanently sealed and do not require additional lubrication.
SOURCE: My ceiling fan - Casa Viejo
Sorry for the delay in response. Electrically, there should be no potential hazard since there would be no more "juice" running through the circuitry.
Posted on Nov 14, 2008
My estimation is that the bearings in the fan are in need of lubrication. What I suspect is happening is the fan is offering too much resistance to the motor, causing the fan belt to slip on the pulley and make the screeching sound.
Have a look at the inside surfaces on the belt and see if they are dull or shiny. A new belt will have dull, non-reflective surface. An older belt will have inner surfaces that look like glass and can't get a good grip on the pulley.
I suggest first loosening the motor (power disconnected first, of course) mounting and check by hand the ease of rotation of the fan shaft. If it's stiff or resistant to your turning it by hand, put a drop or two of light machine oil (like the sort used on sewing machines) in the space between the shaft and its bearing. Work it in a bit and see if that helps it turn more freely. The difference could be dramatic! You might need to add a drop or two more to help it along if it's really dry.
If that doesn't get rid of the screeching, then you may have to replace the V-belt, especially if it's glazed and shiny on the inside as I describe above. These belts are sized by the outside width of the belt and the overall length. These belts are sold by the same stores that sell the attic fans themselves, but I wouldn't totally rule out a well-stocked non-chain hardware store having them also.
In summary, 1) check lubrication of fan shaft, 2) check the condition of the inside surfaces of the V-belt and replace if needed.
Posted on Jun 11, 2009
The problem most likely lies within the fan motor of your Lasko unit. I just got fed up with my Lasko tower fan (model 2515) making a rumbling noise on and off and so I took apart the entire thing. I found the noise to be coming from the Decomin 2033014 motor in the unit. Took apart the motor and found that it is so cheap that it doesn't even have bearings! Just a few plastic discs on a spindle. I tried greasing the discs again but it didn't work. The only solution is to get a new motor. I am really disappointed in the quality of these Lasko fans.
Posted on Jul 09, 2009
SOURCE: Fan does not work!
These tower fans tend to die out fast. It does sound like the stator in the motor got a short since the vain still freely moves. It boils down to your emotional attachment to the fan. You can order a new motor off the internet and spend some cash. If the fan doesnt mean much Walmart has tower fans for dirt cheap ESPECIALLY around school starting.
Posted on Aug 09, 2009
remove protected cover and with wd-40 or oil spray lightly behind the blade at the base oil up the bearing turn blade by hand till free put back and test the bearings get sticky from the dust
Posted on Sep 12, 2009
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