Re: How to oil electric fans

The bushings on electric fans are the self-oiling type and normally do no need to be oiled.

The most common fault of electric fans will be open windings on the motor. I will post some photos of what to look for to troubleshoot electric fans in a few days, or ask my friend, who repairs electric fans for a living to give us some pointers.

Re: How to oil electric fans

that would rock hot daddiy! salamat! 🙂

Re: How to oil electric fans

this is interesting.

have some old fans here myself

Re: How to oil electric fans

got a couple of fans that doesn't run either 🙁
it would be great to know how to repair these things..

Re: How to oil electric fans

depends on the condition of your old electric fans, if they have a busted motor or not.

Re: How to oil electric fans

NOTE: be carefull putting oil in the fan.... hindi talaga nilalagyan iyan ng oil..... unless iyung mga shaft lang niya. it's a simple thing to dismantel.... ang bale nasisira lang diyan ay ang bushing ng motor... aside from that .... complete or i can say na alikabok lang ang problem niya..... dipende kung digital ang electric fan mo..... kapag ganoon malamang nasira na ang tinatawag nilang system control.... but kung hindi naman.... punas lang iyan..... take care

Re: How to oil electric fans

onething more hindi basta-basta nasisira ang motor niyan.... unless nag over heat..... at pinabayaan mo.... kahit ang motor ng sasakyan napapagod din di ba? pero kaya nga tinawag siyang electric kasi ang nagpapatakbo ay electric so walang liquid na nasa loob ...... kaya wag ninyong basta lalagyan ng oil in any part....... again take care..... baka makoryente pa kayo......

Re: How to oil electric fans

We got a dozen electric fans (floor fan, wall fan) in our shops, most of them heavy duty types of 3D brand. Normally its either the bushing and the capacitor that gets busted. We just take it to the small electronic repair shops around town and they would usually charge Php150, good as new na pagbalik ng electric fan

Re: How to oil electric fans

i've brought fans to repair shops before, and 150 bucks isn't so bad for the fan's new lease on life.

i wish someone would illustrate how to check the capacitor or replace the bushing...a few bucks saved, and invaluable knowledge for DIYers. 🙂 share naman!

Re: How to oil electric fans

I promised to ask my brother in law who repairs fans to give me a how to. Actually, I think that there are three things that will go wrong with a fan: the bushing, the capacitor and the windings. All of these are readily available.

For the bushing, a simple test is to check if the fan rotates. There may be instances, although rare, for the shaft to freeze on the bushing. The more common reason for a shaft to be tight on the bushing is if some foreign matter gets into the bushing.

The more common problem with the bushing should be that it is worn out. In this case, the shaft should be loose. Disassembly of the fan is simple as normally, just one crosshead screw holds the rear and several screws the rear fan grill and case. The front fan grill is normally held in place by clips or a screw that tightens a band.

Removing the fan itself from the shaft is easy. But the screw that holds the fan is reverse threaded. Meaning, to loosen the screw, you turn clockwise.

Castings hold the shaft in place, and the bushing is just a press fit. Remove the four or so screws that hold the front and rear casting, and the shaft should be slid out. Use a soft piece of metal to tap out the old busings and tap in the new ones. A very light coat of oil can be put on the shaft.

I'll post another message when I get the procedure on how to test the coil and capacitor. But you will need a tester (multimeter or volt-ohm-milliameter or VOM) for the test, and a soldering iron to replace the parts. But all parts are readily available, Rewinded coils are available; bring your old one and exchange for a rewinded one.

Re: How to oil electric fans

Another thing that could go wrong is the thermal fuse. Some fans have a fuse that burns out if the windings reach a certain temperature. This is a safety feature that normally prevents a fan from burning out and taking the whole house with it. All too often, we read in the papers about houses burning down because of an overheated electric fan.

The thermal fuse is buried among all the other wires near the windings. The thermal fuse, like all the other connections to the coil, is kept inside spaghetti insulators. Feel the wires inside the spaghetti. The one that has a lump inside is the thermal fuse. Check the thermal fuse for continuity. If there is no continuity, meaning that the fuse shows an open circuit, then that is the culprit.

I will try to do a step by step article, the moment I get my hands on a busted fan.

Re: How to oil electric fans

Another thing that could go wrong is the thermal fuse. Some fans have a fuse that burns out if the windings reach a certain temperature. This is a safety feature that normally prevents a fan from burning out and taking the whole house with it. All too often, we read in the papers about houses burning down because of an overheated electric fan.

The thermal fuse is buried among all the other wires near the windings. The thermal fuse, like all the other connections to the coil, is kept inside spaghetti insulators. Feel the wires inside the spaghetti. The one that has a lump inside is the thermal fuse. Check the thermal fuse for continuity. If there is no continuity, meaning that the fuse shows an open circuit, then that is the culprit.

I will try to do a step by step article, the moment I get my hands on a busted fan.

agree ako sa iyo, pero sabi mo nga hindi lahat ng fans ay may mga thermal fuses..... well iyung mga case na nasusunog na fan.... isa sa dahilang ay kasi ang place na pinaglalagyan ay close door..... sa mga may kaya iyung bahay na ganoon.... o sa mga pabrika na halos wala ng singawan ang kuwarto..... kasi ang kailangan kahit sa aircon ay ang circulation ng hangin.... kung close door ka natural na hindi lumalabas ang init ng fan... ang ang resulta iyung init ng motor na aabsorved din niya... kaya ang kalalabasan iyung init ng motor hindi rinlumalabas ng room.... kaya nag o-over heat ang fan... iyun ang kahihinatnan ng mga nasusunugan ng fan...... kaya dapat kahit naka fan kana buksan mo rin ang mga bintana....

Re: How to oil electric fans

This is very interesting. I have brought our fans many times before to a repair shop and its always the bushing that they replace daw. Ang charge sakin e 250 pesos. Now I'd like to be able to do this myself. I have one fan now na ayaw na ulit umikot ang blades - parang masikip . Magkano ba ang isang bushing and is this a standard size or depende pa rin sa fan size? Available ba ito sa mga repair shops? TIA.

Re: How to oil electric fans

tama, kalimitan ng nagiging problema ng electric fan ay lumuwang na bushing (most often sa front bihira dun sa likod na bushing) kundi man ay lumiit na rotor shafting at kundi na makaikot magooverheat at puputok thermal fuse, kung meron! mura lang bushing at thermal fuse, hindi lalampas mga P20.00 each.

hello & gooday to all, very informative site!!!