the Milwaukee dudes are all smiling. seeing an old tool resurrected, and still humming must make them so happy!

The worse part about working on power tools is getting it back together again!

Great repair, well done! I would though say that the owner needs to take better care of his tools.

Those m12 impact drivers are beasts. Did my whole pv installation with one, not even had to recharge it one. Driving 88 8x120 screws into wood, no big deal for them.

Always great to fix something. Not only do you get to use the product, but it also makes you feel good to accomplish the repair... Thumbs Up!

you got a lot of patience if i looked at that drill and saw that burn mark it would have gone srrate in the bin i haven't got any patience at all .as always great video and a great channel thanks for the upload i enjoyed watching

I had a Milwaukee hammer drill M18 something from my employer. While on a rough mission with it (massive stone-wall) it overheated a bit and after that, it failed a lot and it failed with the same blinking-pattern. Since guarantee was expired and my boss refused to get me a new one, I gave it a try. Inside I found a tiny little wire, which hold barely to the solder point. It broke completely, nearly from staring at it. I found out, this was for the overheating-sensor and that explained the blinking-code. I stripped a bit of that wire, resoldered it and the machine worked perfect again.

Another good video. Your guides are very well put together, done at a relaxed and easily to follow pace with a clear well lit view and a steady camera. Others may have edited the failure after the assembly, but you did'nt, you were honest and showed warts an all, and thats reality, you are modest sir. Very informative and entertaining, hope you get time to keep them coming!. Any chance at some stage could you make a quick video, explaining how to identify a bad Mosfet with the meter, as they seem to be everywhere these days, I'm sure lots who watched this struggle like me with them.

Another fantastic video, sir! You have quickly become my favorite KZfaq Channel. I greatly look forward to your future uploads and amazing content!

I don’t know if I’ll ever have an opportunity to do the things I’m seeing you do, but I am learning so much.

Gonna have to start calling you the Milwaukee Whisperer , great job Mon Ami ...

Great fix and nice catch on the resistor.

Amazing work, yeah you can fix everything 😍 we need more videos 😍

Love the Milwaukee repairs

With a damaged Board I thought that was a write-off but good job in repairing it 👍

Nice work, as usual!

Nicely done as per normal. I have found a local repair cafe so will take the Kindle in when I can. If they can not fix it maybe it can be used for spares.

Cool fix and fault finding :) Well used tool, but now it can continue working.

very clever fella and watching you fix that rgb laser was something else.

Cracking repair, loved the series Mick, tnank you for your efforts. Looking forward to the next upload now 👏👍😊

When he opened the cover, seeing the mess inside, the only thing I thought was "it's dead, it had a productive life, let it rest in peace" :D

I like the fact that you answer almost every comment you receive. Do you realise how rare that is ?? Please keep it up.

You screwed it to your desk didn't you? Go on fess up 🙂. Another awesome job though, well done pal

26:56 Noooo not through the Famous bleu mat!!! Good video!!!

I have a bunch of Dewalt battery tools. Never had a failure, even have some batteries still good after 10+ years. But I will admit, never dipped them in cement!

Great video. I have always avoided brushless battery tools as I have no hot air / reflow tools at my disposal and my eyesight is not what it was !!!

Great repair, and no magic smoke when you tryed it the first time, now all that's left is to unsolder all the wires and give the whole thing a good clean 😁

Great repair, thanks Mick 😀

Thank you for the upload nice fix you have a lot of patience 😊

I learned once from a video from EEVblog that when you have a severely burned part of a PCB (like in this case) the burned part can become conductive because it's turned into carbon. If that's the case, you have to grind it down with a Dremel and hope it's not a multilayered board.

They did use it to plaster a wall, great fix.

Thanx for the reply I have taken note, Thank you Very Much

I am blown away with uour channel! I need to know why you do not do a "reverse diode test" on components surrounding mosfets to find shorts? I do enjoy northridgefix and 12voltkid.

Great repair but I'm surprised you didn't clean his tool for him.

Love your videos man 👍 waiting for more.

Great video! More Milwaukee repairs please! :)

That one was very interesting. 👍👍

Excellent video. When I saw all that rust/dust on it I was convinced it'd end up a non-runner. Very impressed! I'm wondering if you can read the firmware off this if you run a glitch attack on it

Nice repair.

Fantastic video! thank you.

Should perhaps have removed the carbonised fibre from under the burnt copper track. Otherwise, good work.

Great fix, thanks a million. Loved it so much i just looked at this video again. So, if a brushless power tool fails, should I always suspect the mosfet, or only suspect the mosfet if its a Milwaukee?

Good work👍

You need to clean and lubricate the buttons and switches in the drill, that's how you properly service power tools.

Beautiful work 😉

Lovely

kind of wonder if the resistor failed first & threw the balance on the mosfets out, then pop

nice work

Did you remove the carbon from under the mosfet? The smallest whiff of moisture and it conducts.. although I'm more used to high voltage so you may be fine at 10.8 but it's worth doing next time... oh and the direction controls are a pain in the ass, they never work smoothly unless all the parts and a couple of stars are exactly in alignment...

Been looking for a video exactly this machine ive got 4 of them were did you get the mosfets great work verry exspirung

Makes me want to open my identical bit driver and see what component failed when it spent a week outside in the snow and rain, its also gone swimming a few times but after pulling the battery and drying it out it comes back to life. It still works but its stuck on setting 4.

Well done, job's a good 'un canny lad! 👍👍👍👍👍👍😃😃😃😃😃😃😃

Just discovered your channel and subbed. Great videos.

Question for Milwaukee specialists: I have a Milwaukee M18 FMTIW2F12 that has an interesting bug. When I press the switch, the machine spins and diode number 3 (third gear) lights up for a long time. Only when the diode turns off is it possible to change the direction of rotation and start again. In addition, the maximum speed (diode number 3) cannot be changed. In order for it to work at all and not to wait for diode number 3 to go out, I remove and put back the battery. That means to change the wheels on a car that has 5 screws, I have to remove and put back the battery 10 times. Once I press the switch, I must not stop until the job is done, otherwise there will be a long pause or re-inserting and removing the battery. Impact wrench M18 FMTIW2F12 with 881 Nm loosening torque and 745 Nm torque Extremely compact design with a length of only 152 mm. Which I found in the trash (500 $) that I want to fix...

great job! I subscribed

Another great fix, keep em' coming. Gonna have a go at this soldering game now I'm retired, Could you tell me which Leaded and unleaded solder & what flux would be best for starting. Cheeers. Ian

Hi, thanks for great video, how can i check each mosfet to know if it's good or Bad?

looks like the owner got his use out of it, maybe a wash in the dishwasher!

That thing was seriously dirty. What i find useful when using IPA to clean things is to put the IPA into a little mist\spray bottle. I have a 14ml mini spray\mist bottle that used to have liquid catnip extract that works perfectly for an IPA mister. Cheers!

Hi Buy It Fix It, for dirty items like this, why not put in a ultrasonic cleaner? Thx

Interesting failure mode. With my very limited experience (and apologies for not really knowing the terminology), I would guess this failure *began* with that gate resistor breaking down somehow, trapping its mosfet in the linear region, making a great deal of heat and burning the PCB. This is bad news for the complementary mosfet in the bridge - instead of its usual current path through the BLDC coil, it instead finds itself in a short circuit and fails due to excessive current spikes, which is a different (and less smokey) failure mode to the first mosfet. This would easily explain why the driver IC was unharmed, but I'd be interested to hear the theories or explanations of anybody who knows what they're talking about (I don't!)

That thing was properly beaten up ☺

Fantastic work, yet again. Although that thing needs a serious dip in a vat of warm diesel, followed by a good soak in oil and grease to kill of the crustyness. I still don't like that membrane gear selector switch they put on those tools, just use a good old ca-chunk-a-chunk switch, it's a work tool, not a game controller.

Does the battery cutoff come from the mosfets closing, or is that a relay by the trigger that shuts

Another one saved. Well done. Seems a lousy design making the driver chip integrated to the brain. The amount Milwaukee charge for their stuff you'd think they could afford to make it more likely to be repairable even if it cost them a dollar or two more.

Probably shorted out through water ingress.👍

A well used device there

What flux do you use? That looks quite good!

I thank You for the CC. @ 25:46 *"Applause"* it says, I second. 8|}

do you ever do repairs for customers? I have an 18v Milwaukie 1/2 impact gun (think of the thing you use to take tires off) that seems to have similar issues. I got a new one but the newer version is not the same as the original-id love to have my old one back. It might be cost prohibitive to ship though, Im in the US

Which grinding pen.u have used . Can we have link

Watch out with carbonised substrate as it becomes conductive!

11:02 grind them ... don't try to desolder

I dont suppose you take on multi meters, I've fried mine.

the black art

I have a few milwaukee tools that are faulty and seem to be the main chip, do you think it would actually be possible to read the data from a working chip and write it onto a new one? Or would this only be able to be done by the manufacturer

Abim bir dahaki sefere mosvet üzerindeki ölçümleri yakınlaştırıp ölçermisin

@9:00 looks like it wasn't correctly mounted to begin with

Hi I have car flip down to dvd player with two blowing carpaster don’t no valu on them would you like try fix it I pay for the post and cost of repairing it

would this be the same issue as mine, i have the same but flashing single battery light, batteries are fine, the drill doesnt run

Where buy spart part?

I would've expected multiple mosfets blown before killing cpu pre driver ?

👍🏻👍🏻👍🏻

Now I know why they call it a dog's breakfast, because like a dog with a bone, that looks to have been buried.

I wonder That big motherboard full of chip in a DRILL...😮😮😮😮

ultrasonic cleaner would make that tool look like new

I felt the need to comment. I don’t want to pan your work as you generally do good work however you did 2 things wrong with this repair. First is when you cleaned it you did not remove all the carbon scoring - why is this important? Because carbon is resistive and may well have been the cause of the no work situation after reassembly, but the final mistake you made was not testing it before reassembling. I personally would have checked the resistance across the gate to the other pads just to be sure it was correct not just because of the possibility of dead new parts but also because of the carbon scoring.

for the love of all that is holy clean your solder iron tip

You didn´t measure for any shorts...?

No conformal coating. No parts to order to repair. Milwaukee owned by TTi, Hong Kong/China company. All throwaway tools

Miljunkee

Hi i never understood why you always put everything back together before you even know if it fixed ?