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Trouble shooting 4100 Bosch motor Replaced Amateur Turning switch on trying to turn over ,but will not just a humming sound

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  • Bosch Master
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Try turning motor if same bad motor

Posted on Dec 18, 2019

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6 Suggested Answers

6ya6ya

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Posted on Jan 02, 2017

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douglas smith

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SOURCE: GE Dryer DWSR473GV0WW periodically just hums when turning on switch

if it hums when you start it means switch is ok. problem may be the motor capacitor. to check, take off the top and give the drum a push in the normal direction of rotation. if it goes then motor capacitor is faulty - cheap part

Posted on Mar 28, 2007

robert samples

  • 1314 Answers

SOURCE: GE Dryer DWSR473GV0WW periodically just hums when turning on switch

might have a dead spot on the armuture or lint in the motor and or the centrifcal switch try taking it apart and cleaning the motor if that doesnt work replace the motor

Posted on Feb 15, 2008

john h

  • 22486 Answers

SOURCE: Aloha Breeze pedestal fan blades won't turn, but motor is humming

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

Daichi Hayden

  • 52 Answers

SOURCE: motor hums but does not turn, is the cap shoot? how can I test i

Run capacitor.

Posted on Feb 14, 2010

dansappli187

  • 5 Answers

SOURCE: maytag dish washer makes loud humming sound, I

Itcould be something caught in the impeller or filter area

Posted on Jul 21, 2010

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Overloading may have caused a thermal protector buried in the motor windings to open in which case the motor will have to be replaced.

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I have a Bosch SHV46C03UC dishwasher. my drain motor/pump will not shut off, even when door is open...Any suggestions on how to trouble shoot?


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It may be the drive belt from the motor to the drum. If the dryer top flips up, you can see if the belt is intact, or is there a bottom panel that is removable? In any case the belt needs to be inspected. With that said, the 'strange odor' may very well be the motor. The motor / belt needs to be visually inspected. If anything is opened for inspection, be mindful of live wires and contacts.

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Motor turning at very slow speed.


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Electric blade brake sounds like it is seized up. Upon starting table saw (bosch 4000), motor sounds like it is binding. How can I disengage the brake??


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My bosch table saw now seems to be barley turning the motor over after electricitions were switching the power on and off on us the other day as we were cutting .. was wondering if there is a reset switch...


Sounds like the electricians did more than turn on and off the power. There may be several causes to this problem.
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1 Answer

Maytag Neptune Dryer Model # MDE3000AYW


Motor malfunctions usually call for service by a professional. There are three main causes of motor failure: lack of lubrication, a defective motor switch, or worn or frozen bearings. A humming sound can be related to a burned-out motor or a defective switch. Check these trouble spots before you call a professional service person or take the motor to a repair shop. Here's how to check a dryer motor:
Step 1: Remove the back access panel. Then reach behind the drum, motor pulley, and idler arm pulley. If these areas are clogged with dirt and lint, undue strain on the motor may be causing the humming noise. Worn or broken belts can also cause a humming noise. Check the belts for wear and damage. If the belts look all right, you may be able to stop the noise by spraying them with fan belt dressing, available at automotive and hardware stores and home centers.
Step 2: Turn the dryer on. The noise you hear may be the whirl of the spinning drum, not the motor. Some noise is normal.
Step 3: Force a little 20-weight nondetergent motor oil (not all-purpose oil) around the ends of the motor shaft. This lubrication may stop the humming noise. If this doesn't solve the problem, remove the motor and take it to a professional service person.The centrifugal switch on the dryer motor may be located on top of the motor. Humming, no motor power, and no heat can be caused by a faulty centrifugal switch. If the switch is externally mounted, check the terminals of the switch to make sure they are tight and not burned. If you spot trouble, remove the switch and take it to a professional service person for testing. A faulty switch will probably have to be replaced. Some centrifugal switches are located inside the motor housing; you won't be able to remove the switch in this case. Remove the entire motor and take it to a professional for repairs.
If the motor hums, but won't run the pulley on the end of the motor shaft, try turning the pulley by hand.Caution: Before turning the pulley, make sure the power to the dryer is turned off.

Sep 12, 2008 | Maytag Neptune MDE5500AY Electric Dryer

2 Answers

GE Dryer DWSR473GV0WW periodically just hums when turning on switch


might have a dead spot on the armuture or lint in the motor and or the centrifcal switch try taking it apart and cleaning the motor if that doesnt work replace the motor

Feb 14, 2008 | Dryers

1 Answer

Bought the display unit and water will not work.


hi there the low humming noise that you are getting sounds like the fill valve, this could be due to you perhaps not turning the water back on after fitting the new dishwasher or the fill hose being kinked when the dishwasher was put back ,hope this is of some help to you.

Dec 02, 2007 | Bosch 24 in. SHU43 Built-in Dishwasher

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