Question about Honeywell HW628 Window Mount Fan

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Loud screeching sound from window fan.

How do I oil the motors of a Honeywell twin window fan? Mine have started making loud screeching sounds not unlike a wild banshee. It can be unnerving when you're not expecting to hear something like that....especially in the middle of the night. My friend thinks it needs an oil job. But I'm not handy at taking things like this apart without it meeting it's demise. Any advise at this point would be most appreciated.

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There are two bearings in most motors.  One is at the base of the fan blade where the shaft goes into the motor.  Try lubricating this with a small amount of household oil.  If your lucky, this will stop the problem.  If not, the bearings have worn and the unit will need replacing.

Posted on Nov 15, 2008

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1 Answer

When the fan rotates it makes a loud noise. Sounds like it needs oil. Where can I put lubricating oil?


Simply disassemble where its possible and find the place of the bearings most its short right behind the propellor where the shafts come out the motor if it is hard to find for an accessible place spraying wd40 with the hose pipe on the canister behind the propellors can may be help do not use sewing machine oil because of the time being it accelerates faster dirt in the sliding bush of the shafts.

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I just bought the Honeywell Quietset 8-Speed tower fan (black and silver on top). I installed it correctly but the fan is extremely loud and squeaky and can hear the inside pole that rotates the fan, even...


STOP! Before you take anything apart, turn fan upside down and find the large plastic "screw"(cord passes through it)that secures the fan to the pedestal. Is same color as unit. Loosen it and see if squeaking stops. Worked for me!

Mine was driving me nuts and I was prepared to return it to store.

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Bad bearings on a small HT800 table top fan. where can i get a replacment bearing?


Unfortunately, this fan was designed to be ran until it wouldn't run anymore, then thrown out.

However, I likely know what the problem is. The motors in these and most other small fans are a C-Frame Shaded pole design, they have porous bronze bearings, with a small amount of wicking material around them. They supposedly are oiled when they leave the factory (the motor factory not the fan factory) What happens is, the oil on the bearing surface is churned around by the rotating shaft and the heat from the motor slowly evaporates it, as this happens, the wicking provides more oil, which soaks through the porous bronze bearing, keeping everything lubricated. Over time, two things happen, 1. If the oil used wasn't very pure (and we are talking a $15 fan here) the volatile parts of the oil will evaporate leaving behind what won't evaporate, therby "gumming" up the bearings, making the blade hard to turn by hand and the fan very hard to start running, but once it gets going, it runs OK.

2. All the oil evaporates out, then the bearing and shaft are running together dry, the motor will run like this for quite sometime as the bronze is softer than the shaft and the metal coming off the bearing will provide some lubrication, but the bearing is being eaten up by the harder shaft. Eventually, the bearing will wear so much that the rotor drags on the stator and the fan will suddenly lock up hard when running and make a loud buzzing noise like hair clippers.


From what I remember, I had one of these that I used to boost the output from an oil filled radiator and when it gummed up, I was going to take it apart and re-oil it, but the thing is held together with security screws which I didn't have the tool to remove, so I threw it out.

However, if you can get in it, open it up, pop the blade off the shaft by pulling on it, motor should be held in with 2-4 screws, get some 3 in 1 oil (in the blue can) and oil both at the shaft and behind it where the wicking is. Leave the motor hanging there, plug it in, run it for a while to get it warm and oil it again, then put it back together and it should go back to working for a few more years.

Hope this helps :)

Jan 28, 2011 | Honeywell HT-800 Table Fan

1 Answer

Fan blade does not immediately spin when turned on; loud


The motor bearings need machine (like sewing machine oil).
Try a quick spray of WD40 or Liquid Wrench, but use machine oil, soon.
Look for an "oil hole" on top of the motor; there may be two of them.

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Loud noises from Lasko fan motor?


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.

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The Attic fan on my house roof is making a loud screeching noise. What is wrong with it and what do I need to do to fix it?


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.

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1 Answer

Makes a loud noise when it is turned on. Can't open it.


If it is making a loud humming sound it is probably getting weak and will have to be replaced. Is it doing it in all speeds? Motor replacement would probably not be worthwhile unless it is a very expensive unit. I'd opt to replace the unit.

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yes that is the oiling hole,use some wd40 or 3 and 1 oil but not too much.the noise you hear is the back bearing of the motor

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hi remove the net spry lubrication on bearings and the motor see if u spot on 1 of the blads signs of grinding if soo twist this blade the other way good luck windman

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