Rep: 13
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When I turn on my xtreme garage floor fan I can hear the motor running and the blades try to spin but it won't and the back starts to get hot
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You need to change your fan's bushings. Bushings hold the armature centered on the core winding of the motor. When one or both bushings are worn out, applying power on the motor will pull the armature to one side and cling to the core winding instead of making the armature turn. When the fan is "off", there is no magnetic field on the core so the armature is loose so you can easily turn it. To see if your bushings are worn out, take off the fan blade by removing the knob in front of the blade, turn it clockwise. When the knob is out, pull the fan blade off the armature shaft. Then hold the exposed armature shaft with your hand and try to move it vertically and horizontally. When you feel a movement, your bushings need replacing.
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Had to search for an hour before finding this answer - never guessed that the armature is held in place laterally by the brushes - hence the vibration my fan was experiencing. A little embarassed because I have been an electrician for over 50 years hahaha. Thank you Mayer. Rob
Good experience, same to me finding above answer . Thanks for the sharing mayer .
This sound good answer. I will fix it with your comments sir. Thanks very much
Rep: 37
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Often when the fan buzzes but doesn't start and then starts when you give it a nudge and/or it starts only when switched to hi speed , suspect the starting capacitor. If the fan doesn't start at all , use an ordinary ohmmeter to check continuity at the plug end while switched to different speed settings. If there is a reading check to see if the reading changes slightly when switching between different speeds. If readings are obtained it indicates that the coil wires are ok. If no reading at all then suspect the small thermal fuse is open (because it did it’s job) protecting the motor from overheating and burning out the coils. This can be caused by a u/s cap or as mentioned in other answers , by lubricants having become so sticky that the starting torque is just not enough to turn the motor which will cause it to overheat and open the thermal fuse. The latter can be replaced with some difficulty and a steady hand. It is normally heat-shrunk and soldered between a mains wire and a thin enamelled copper coil wire.
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Hi, I just want to get an answer on my electric fan problem, i just replace it a new capacitor,new buching bearing and oil it to.I still hear a small humming from the motor when i press it to No.1 but when I give it a nudge it will start. And by the way the electrician before bypass the common wire to the starting capacitor because the thermal fuse just got burn before and the electricfan start when it bypassess the thermal fuse so when i decided to replace the capacitor and the bearings it is already bypass the thermal fuse.
Seeking your kind assistance by email me at semajrm904@yahoo.com
Waiting for your reply because i cant wait to fix the problem of my electric fan by your help
Thank you
Rep: 157
3
Try to jump start your fan by pushing it with your hands after starting it. If that doesn't work, then check the fan's wiring- find an electrician, or call the fan's company and check if you still have warranty.
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something also might be stuck in the motor such as hair.
Take it apart and clean & oil it
Chances are the bearings are seized. Gently take the motor apart, add wd40 to clean, then add 3in1 oil, if sleeve bearing
eiF ball bearing u could try to regressed them,, but ur best bet is to replace them
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The fan turns slowly and at times it stops, what may be the proble
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What if it will run both directions after starting with finger? Please advise.
- de Tommy Williams