Thank you so much for this video! I'm a single mom with no fix-it skills. I watched so many videos to fix my 'screaming' fan and yours is the only one that worked, so thank you!!!
Thanks for your help. I'm going to look for the thermal thingy. This fan repair is making me crazy ! Such a simple thing........ but I don't know enough to get it right.
I like that you bother yourself fixing such cheap things. If it's inexpensive to repair, then why not? I like to fix stuff too, fixed quite a few CFL's already and if the filament goes open, I just power them with a little circuit that treats them like cold cathode tubes. Works a treat and keeps this harmful pieces out of a landfill for longer.
+MrJohhhnnnyyy I do it more as a hobby. That cheap fan still is running almost a year later.I probably would have just bought a new one, but it broke in a heat wave, and all the stores were sold out already. I do have central air, but try not to turn that on this early in the season, because the that sucks back power like there is no tomorrow.
12voltvids You hit the point. Most of the time it's just interesting for me to see - can I bring this back to life? Few month ago I fixed dead coffee grinder that was dead thanks to the field coil having a break. Luckily the break was on the outside of the winding, easy to get to. Works great now, good performer. I love your vids, keep up the good work! :)
I would fold a piece of sandpaper over the leads of the thermal fuse and strip any and all oxide off the leads .. especially true if you plan on soldering the replacement fuse ... clean leads make for quick and clean solder joints i.e. less thermal input req'd.
I like fixing fans. If I can. Never did change the thermal cutout or Capacitor yet. I do need to try. I take the rotor out and clean the bearings and lube it.
Thanks so much for this video tutorial! I learned alot. My fan is lacking a nylon/plastic spacer on the motor shaft within the motor 'assembly cage' (such as the white one yours has in this video, in front of the armature, inside of the 'assembly cage'). My fan motor shaft, as a result, slides in and out during fan operation, and when it is further out, the armature grinds against the assembly cage, and then the oscillation kicks in. I was thinking about adding some sort of spacer on the inside to prevent this. Where would be a good place to find a suitable spacer? Thanks!
Nice work. It's ridiculous that they don't have oil ports to just add oil to the bearings from the outside. They KNOW these bearings are going to dry out in a couple of years and overheat the motor and they hardly oil them at all anyway when they are new. It's OK to just add new oil to old oil in bearings without "cleaning everything" like some RU-vidrs. For generations, people just added oil to oil ports in electric motors and they lasted almost forever.
@@12voltvids - Yeah, but it's more likely BLATANT planned obsolescence that the average fan owner can't oil the motor regularly unless you're a fan hobbyist. They don't even try to hide planned obsolescence anymore.
I own a windmere 12in table fan and it 90f out side and I was in my office area with it running and it locked up I had to take the motor entirely part and remove the barring sat in motor oil for a week I put it back together and it works grate its actually quite as well.
Was hoping there'd be portion where capacitor is tested, and show procedure to know if its bad or not. My fan heats-up fast lately and another one with blade not spinning. Still informative though, thank you for putting up the time and effort.
Maybe you should use a screw gun for undoing the screws. That would be a lot faster. Also, you should of showed us what the fan blade looks like. And, also the grills for the fan. Those are things that people look for when watching a fan video.
I would always rather repair something like a room fan than just throw it away. Depends on the issue. But some people throw them away because there's dust on it. They think the display of disposable income is a better use of their time. I think repairing things is a better use.
Almost 18 minutes of the back of your hand. Luckily it was broken up by 3 advertisements. Pretended to show us close ups of... nope too slow bro. Here's a part I removed from the motor. Study this closely, not telling where I found it. It's really important to put a new one back in. It's frustrating to invest so much time & not see where anything fits. I could've *watched* with my eyes closed. it sounded like you covered the details that could've helped.
Nice video. Do you know where I can find a replacement fan motor for an older model Lasko Box Fan with the larger "deeper 20" box" ? I'm having trouble finding one. Thank you.
I've been cleaning my fan motors for quite some time now. never seen any of them with a thermal cutout (live in a 3rd world country). I was wondering what kind of oil you used.
+alfblack2 It is just light electric motor oil, like you would use in a sewing machine.The thermal cut out is required for UL certification. To sell in North America it has to have that certification.
Cool. We use the same thing. hehehe. I have an ancient industrial fan almost a decade old that requires maintenance once every few months. I was wondering if it's the oil that is the issue. But I guess it's just the age of the fan. :)
I've got novice fixing skills, a neighbour threw out a beautiful fully metal tall fan. Honestly the little motor housing alone, no blades weighs 3x more than the cheapest amazon stand fan. The issue was thermal cut out. Now when I took it apart, which was a very hard task as it's very well put together the windings right near the thermal fuse are loose in two spots. Could this be causing heating in the location?
Hi thank you for the video. may i ask if all fans use the same thermal fuse in terms of its ratings? i'm asking because i have 2 fans of the same brand but different sizes. Both stopped working. i took apart one and pulled out the thermal fuse. I'm not sure if i bought 2 of the same thermal fuse would work or do i need to pull out the oher thermal fuse as well? Thank you for taking the time to answer my questions.
Great Video. I have two fans. Looks like I found this video just in time, (before the Thermal cut off opened). This should speed them up. I noticed you had blue a 3 in 1. It looks like their Blue electrical, but the only Blue electrical motor oil I found was for 1Hp or larger. Is this a special 12v or small motor oil you use, or is this a standard 3 in 1? I also have a Singer sewing machine oil I've heard might be better. I bet all are ok since it's just a couple drops, I just wanted your pro opinion. **Tip: Also, some fancier oils come with telescoping tube. I found that a small piece of fuel line hose ($.13/ft ) I had (from a weed eater repair) works great on all of my small oil bottles!
Any light oil will be fine. Just don't use engine oil. It has detergents in it that are not needed or wanted for electric motors. Sewing machine oil works fine.
I have been using engine oil (50/50 mix of 5w30 and 5w20) for the past few years without issues. I have tried sewing machine oil, 3 in 1 bicycle oil, hair clipper oil, and white lithium grease before that and those did not last at all. Why are the detergents bad in engine oil and how come it is the best that has worked for me?
12volt, I have a Airking 9155 16" blade. Window fan. I have to do the same, is the thermal couple located inside the housing and I would do it the same way. Pain in the neck to get in side do you know of any other videosThanks. Good stuff......
Most motors have the thermal cutout on the common lead of the coil and it is usually mounted right on the coil so that if the fan blades were to stop turning and the motor overheats they will open before the insulation breaks down and causes a bigger short that could lead to a fire.
I will also reflect on one thing I have seen happen, if the fans motor run capacitor goes bad but not fully bad,, (the fan wont start and just hum if this happens) it wont create the proper electrical offset in the motors field windings and this make the motor run hot (it creates unwanted inductive heat in motors stator field) as well as running slower then normal. this heat buildup can offset cooling airflow and will also slightly warp the motor frame and make the fans sleeve bearings bind up causing the fans inductive rotor to lock up (locked rotor event). The motor will then if not shut off cook itself opening the thermal protection fuse or worse. I think you addressed the run cap issue in another video in recognition,, But a partial failure of the fans run cap wont stop the motor outright but in some cases it will make it produce more heat so it is a good thing to check as well.
does the thermal cutout take the place of a capacitor? i have a fan with a dc motor, i opened it and the motor is completely stagnant and a capacitor is attached to it.
yeah i found the thermal cutout, i shorted it and my motor started to work, so iam guessing so far that was the problem, gotta replace it. still trying to figure out why would there be a capacitor though. Great video btw, Thanks.
Induction motors use a capacitor to create a phase lag in the second coil, which creates the rotating magnetic field required. I do have another video up with another fan that the capacitor failed, so if you look that one up you can see the symptom. The fan start, but if you spin it by hand it will rotate slowly. Shaded pole motors don't need one because of the copper straps on the stator. These work like a transformer to create a separate magnetic field that acts on the rotor to produce the required magnetic rotating field. Larger fans use an induction motor as they need more power.
HI just a quick question how can u connect the motor from the fan staight to the power out let wich cables make the motor work and spin can some one help?????????
12voltvids engineering-in failure, products made cheaply as possible, increasing sales over rivals, making do with off-the-shelf parts, international trade complexities = waste of copper wire, manufacturer's industrial pollution and fans littering dumps all over our warming planet. Systemic problems like these seem to baffle the genius of mankind. The answer out there among us somewhere waiting for the light of day. We need you now.
Because it is made in China by people that don't care. They want you to buy a replacement as soon as possible and put that one in the landfill. The goal is to exhaust all earth resources as fast as possible making throwaway crap. This is so a small group of global bankers can get rich as possible using pennies on the dollar outsourced slave labor and import that junk back into the country tarrif free. That is why you don't get an oil hole or any amount of felt oil wicking.
If the fan stops, due to a seized bearing, or something falls into it, there will be no airflow over the motor to cool it. The coil will overheat, and burn out, or worse could cause a fire. The thermal cut out is there to prevent this.
Hillside Animal That is irrivaliant because different designs, voltages and line frequency affect the size. I believe this one was 4.7 @ 400v ac, but you are going to replace same value that is in there.
How are the bearings. Should turn freely. If they are good then check the coil for continuity, if that is good then the capacitor or switch is the problem. Of course if the thermal cut out is open line in this one it won't work.
Raphael Daniel Somera Only 2 things will cause this. If the motor coil has a short in it, then the motor is done. Much more common than that is the lubricant in the bearings dries out, and the rotor starts to stick and this causes the motor to work harder and overheat. In this case you can probably take it apart and lubricate it. If the bearing is worn out, it will probably not last long. You can tell my looking at the bearing and shaft. It is is all scored from metal to metal contact, then the mtor is on it's way out.
Nope that's American pronouncing. English pronounce it solder and I am Irish Scot so i pronounce it the English way. You do know that ours is correct right.
for sure NOT.and never will.i am 70 now, healthy, and will stay that way. i do not need a big steak or roast pork every day. but veggie alone and Tofu, thank you but thank you no...
@@benediktmorak4409 I bet you're not healthy and you are on some sort of so called medicine to control your high blood pressure and hair loss. So Stop kidding yourself
Dude the "L" in solder and soldering iron is silent. You gotta stop pronouncing it that way. Like, immediately. And stop saying your "ai" so hard. Example, against (agenst) not (agaynst). Thats some bizarre lingo bro.
