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You need to check the blower fan and make sure there's no obstructions (you probably would have noticed by now though). Remove the belt from the motor pinion and try to rotate the shaft of the motor manually. To remove the belt, you will need to relieve the tension of the belt by moving the idler pulley over to slip the belt off. If it is stiff, or almost impossible to rotate manually, the blower fan housing is clear, then you need to replace the motor. IF......... The motor shaft rotates freely, try to run the motor with the belt removed. If it does run with the belt removed, then you need to check the idler pulley and the drum itself. The idler pulley is the little wheel that the belt runs around to keep tension on the belt. It may be stiff or frozen. If you've gotten this far, try to rotate the drum by hand, if it is difficult to do, focus your attention to the rollers and pulley. If the motor doesnt rotate, even with the belt removed, yet you can turn it freely by hand. You usually need to replace the motor or the motor start capacitor. I hope that you have found this helpful. Thanks, Mike
In a dehumidifier most squealing noises are related to the fan motor or the fan motor shaft. Following the Owners Manual instructions for removing the unit's cabinet for routine maintenance. Lubricate the fan shaft with some light sewing machine oil or a similar oil. That should solve the annoying squeal. And while you've got the cabinet dismantled, do some routine maintenance, like cleaning the refrigerant coils and any other dust or lint you see.
The impeller is screwed on to the motor shaft; to remove it you need to hold the motor shaft at the fan end so that you can unscrew the impeller - normal right hand thread. Holding the shaft can sometimes be quite difficult so a good suggestion would be to remove the fan cowl along with the fan, this will enable you to secure the shaft with a small pipe wrench or similar. Once you have the impeller removed it will be possible to ascertain what steps need to be taken next - you may need a new shaft sleeve as well as a new mechanical seal assembly.
Turn off power in all cases. If you are replacing the orignal motor for the 1st time. It might be easier if
you cut the wires near the control box and then wire
nut them together and wrap with electrical tape.
Remove the fan cover and unloosen bolt that hold the
fan to the frame or whatever it might be. After fan is out spray some WD40 that holds the fan blade to
the motor shaft. Measure the distance from the fan
blades to the motor.
Unloosen the screw that holds the fan blade to the
motor shaft.Take sand cloth and try to clean up
the shaft below the blades. Try to tap the fan blade
down towards the motor.If it moves sand the shaft above the blades. Take channel locks and grip the shaft below the blades, try turning the fan blade while
holding the shaft until it spins freely and the remove.
Thanks for the clarification. I have never seen this problem previously in a Kirby. I wonder if the belt keeps sliding off because it's been stretched out? After about 1-2 years, the belts on the Kirby will stretch out to a point where there can possibly slide off the motor shaft. Have you tried just replacing the belt on the unit first?
If you're sure that it's not the belt that may be stretched out, and you'd like to replace the motor shaft, you certainly may do this. The only problem with this is the motor shaft is not sold by itself as a separate part. The only way to purchase this motor shaft is to purchase the entire fan assembly, which includes a new fan, and the hardware necessary on the fan assembly.
In terms of installing it, we've actually recorded a video repair on how to replace the fan assembly, which involves removing the motor shaft in order to get the fan off. Since you have to purchase the fan assembly anyways in order get the motor shaft, you may want to go ahead and replace your fan assembly at this time also. Even though your fan may not be broken, on Kirby's the fans can become coated with dirt and fine dust, which can sometimes lead to the Kirby exhausting a bad smell. If you'd rather not replace the fan, you may remove the motor shaft without disassembling the entire machine, you'll just need to secure the fan somehow so that the fan doesn't spin while you're using a nail to turn the motor shaft off.
Anyways, here's the video repair that we recorded. I hope that this helps you. If you found this helpful, please kindly rate my repair helpful by clicking the thumbs up icons in the top right hand corner of the repair. This is really what keeps Fixya repair professionals continue to give free repairs online.
Here's Part 1 of the video:
Here's Part 2 on Replacing the motor shaft and fan:
If you have any follow up questions, I'd be more then happy to answer them for you, please just add another comment here on the repair page, and I'll be more then happy to answer any follow up questions that you have. Thanks again for rating the repair, I greatly appreciate this.
The fan blade can be removed from the shaft. You just need to pop the lock washer off and pry the fan blade. You most likely will not be able to remove the fan blade without damaging the blade. You can buy the replacement fan blades online. The part number is 5901A000. Here is a blog on the entire replacement motor assembly. http://nutoneproducts.typepad.com/nutone-products/2009/08/nutone-0695b000-replacement-bath-fan-motor-for-model-qt80.html
I removed the impeller on my DW761UQB. The instructions were molded into the plastic pump housing. This is how I DID MINE: Remove motor mount screws. Remove the chopper screw (screw only goes into impeller, not motor shaft). Remove chopper and rotate/remove strainer. Place socket or wrench on impeller tip and place another wrench on rear of motor's plastic fan. Unscrew fan from impeller shaft ( threads are LEFT handed, turn CW). Once fan is 'backed off' of the impeller, CAREFULLY pry the motor/fan from pump housing (impeller is attached to motor shaft via splines). Don't crack the delicate plastic pump housing. Mine was stuck, but separated with moderate force. Now remove the impeller/seals from the pump housing. This worked for MY above mentioned model, I don't know what other models it applies to. I am not a pro.