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I had accumulated three floor standing fans which had stopped rotating. Had cleaned and oiled its shaft bearings and even changed the squarish capacitor but still not turning. Was about to throw them away when I thought "... what's the harm in dissecting them, I could learn something from it...!!"

I had asked a few servicemen and all I got was a short "...there's an internal thermal fuse...". I trawled the web for months but just could not find any info on where the fuse was and how to replace it. Finally I decided to sacrifice one of the fans and dissected all the wires going into the windings. 

From this came the schematics of the fan, but only up to the motor windings.

This instructable comes in 2 parts: (I)Troubleshooting and (II)Fuse replacement.

 
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Step 1: Materials Required

Cross head screw driver
Flat tip screw driver
Scissors or Pen knife
Soldering Iron and some Solder
Some string about 0.5mm in diameter 
Spare wire, about 60cm long
Capacitor 1.4uF 450VAC (if required)
Thermal Fuse 130degree C, 1A, 250Vac
  (note: I could only find a 2A 130deg replacement @$1.50SGD a piece from the local electronic component shops. Sorry I don't have equivalent part number from Mouser, RS n Digikey)

 
Klownfish3 months ago
Any idea on standing fans, that is able to spin briefly for approximately 2 secs and just stops. I have accumulated 3 fans of different makes and brand. They have the same trouble too! Tried replacing the capacitor which doesn't see any improvement. Also tried to short the thermal fuse contact that don't help.
eddievamansec6 months ago
This instructables program help me so much. I don't have to go every now and then to repair shop.
edywnr741 year ago
i like
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