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I have a Simplicity (Danby) SDR458H Dehumidifier. The bearings in the fan motor have become loud and scratchy sounding (due to a plugged-up filter in the past). I would like to get a repair manual for it with part numbers so I can order a new fan motor.

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3 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

SOURCE: Vacuum has become very loud screaching sound

Yes, I would say the crack is causing the screaming sound.

Usually the fan (impeller) is held on with a left-hand nut. To remove it, you have to hold the motor somewhere (sometimes you can just hold the impeller), put a wrench on the shaft nut and turn it clockwise. The impeller should then just pull off (with possibly some wd-40 and a little muscle).

Posted on Apr 22, 2009

ftw1952
  • 10319 Answers

SOURCE: I have a new Hoover BH50015 hand vac. The noise

yes the bearing is full of dust and dirt
unscrew the housing and clean the bearing area and shaft
then add a dap of Vaseline to the shaft and reassemble
The shaft rides on a nylon bushing which acts like a bearing but has no ball bearings in it
regreasing it is the only help you have for this one here

Posted on Mar 06, 2011

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1 Answer

How do I Pull apart a Simplicity Synchrony?


The noise is likely the brush roll or the lower motor fan if you only hear it when you turn on the brush roll. Remove the bottom plate to examine the brush roll, there are screws on the bottom of the vacuum that must be removed so that the top nozzle housing cover can be removed. Remove the screws to take the cover off the nozzle housing from the brushroll to the lower motor so you will be able to inspect the fan in the lower motor. You have a high quality precision vacuum that is not easy to repair without proper training. It may save money and provide better results to have it repaired by a qualified Simplicity or Riccar repair shop.

Jan 23, 2017 | Simplicity Vacuums

2 Answers

Hi My bissell proheat 2x 9500 is making a loud noise when the brushes are moving. I replace both belts and cleaned the brushes. Can you think of anything else it could be.


Hello there,
Try using other brush attachments, as broken bearings in a brush attachment will cause noise. If these troubleshooting techniques do not work, you may need to service the engine.
Remove the filter and bag of the machine and make sure that they are not clogged or full of debris. Clean any filters according to the instructions for your model or replace the bag. Excessive debris will make the engine run noisily.
Inspect the hose of the vacuum and remove any large debris that may be clogging the inside of the tube. Large amounts of dust, as well as stones or other hard materials that bounce, may cause a loud noise in the engine.
Remove the housing that conceals the engine of your machine and inspect the fan for damage or clogging. Remove any dirt or debris that may hinder the movement of the fan. Inspect the fan for any damage such as bent or excessively sharp blades. Replace the fan blades as needed; contact your vacuum manufacturer if the fan is damaged. The replacement part will include instructions.
Tighten the fan with a ratchet if it is loose on the assembly. A loose fan will make a rattling sound as the motor revs.
Wipe dirt and dust from the frame of the engine. Large quantities of dirt or dust around the motor can cause it to overheat, which can cause vibration and loud noise.
Look for corrosion around the engine. If the engine is corroded, it must be replaced.
Grease the bearings of the engine if you hear a grinding noise from the vacuum. Greasing is often performed through ports in the engine, or by removing the bearings. However, the actual greasing method is model-specific. Consult your owner's manual or send the vacuum to a service professional for this service.
Inspect the inside of the vacuum cleaner for other worn parts or broken pieces. Worn or broken pieces can cause loud noises to occur. Remove the broken part and order new materials from the vacuum manufacturer or take the machine in for service.
Hope this information was helpful to you. All the best. Elect_Comp

Sep 05, 2011 | Bissell 9500 ProHeat 2X CleanShot Upright...

1 Answer

Simplicity freedom model f3300 makes loud noise when running.


sounds like the fan might be broken in the motor

Oct 02, 2009 | Vacuums

1 Answer

Kenmore upright vac model 33922 - good suction but developed loud whining noise after accidentally vacuuming room without bag. Added bag and changed both filters. Still makes noise. How can I stop noise?


The bag is the first stage in your filtration. Most times what you did will draw fine dust right through the filters and into the motor itself, affecting the bearings and clogging the motor fans, throwing them off balance.
The fact that there is a new noise would seem to indicate bearing problems which will only worsen unless the vac motor is dismantled, fans cleaned and bearings either replaced or cleaned and repacked.

Sep 14, 2009 | Kenmore 33922 Direct Drive Bagged Upright...

2 Answers

Motor makes loud growling noise, no suction on model 270 i Miele canister style vacuum


Hi there SmartAlec from NelsonVacuums.com.au here. Unfortunately that normally means the motor has shot its bearings and/or its carbon brushes. I think it is time to purchase a new one. On the bright side there are some rreally great vacuums out there! If you want any help choosing a new machine send me a message. Happy Vacuuming :)

Sep 04, 2009 | Vacuums

1 Answer

What causes these things to become unbearably loud? We've cleaned evey filter on the machine, pulled every speck of hair and lint off the brushes, changed the belt, no clogs anywhere. I've totally (and I...


A clog in the hose or dirt inlet by the brush roll will cause the motor to sound loud. But so will a bad motor bearing, or motor fan, in which case you would have to replace the motor.

May 05, 2008 | Bissell Vacuums

1 Answer

Very noisy


Usually when the motor fan or motor bearings go bad, it will run very loud. You will have to replace the motor. Part #2031214, sells for around $55.

Jan 17, 2008 | Bissell 6594 PowerForce Bagless Upright...

1 Answer

Vacuum sound is too loud


If its aloud grating noise the motors at fault the fan in the motor is catcthing its housibng

Nov 06, 2007 | Bissell 3594 CleanView PowerTrak Bagless...

1 Answer

Too loud noise of Bissell 6590-W vacuum cleaner


When they get real loud either the motor bearings or the motor fan are bad and you will have to replace the motor, part #2031100, would sell for about $45.

Oct 04, 2007 | Bissell 6590 CleanView Bagless Upright...

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