Your video was great! Thank you for posting! After testing my dead vacuum board, I determined that the same mosfet was failed. I replaced it and the vacuum is working again. For reference to others, the component is an N Channel mosfet, 200ma. Part number BSS138LT1G, , available at Mouser, Digikey or on eBay.

This video was a life-saver! I bought two of these years ago, and they just both would run for 10 or 15 seconds and shutdown. This video showed exactly how to get access to the wiring (I figured it be locked behind security screws or glued together shell) and bypass whatever sensor is down next to the motor (temp sensor?) Just cut the wires and bypassed that sensor and now they both run like they should! Thanks, so much!! Now they are actually able to be used.

I had the same issue and exactly the same component was faulty. Working again, thanks to you! 👍

You're the man! Lifesaver!

Came here from your stezfix comment great content buddy keep it up 👍

This unit keeps shocking my hand when vacuuming rubber backed carpet, static through the handle onto my palm? Then the unit will not re-start. Milwaukee has been great, repaired 3 + times, then just replaced the unit with a new one. Now today the new one quit. Thank you for helping me to understand why I have been getting zapped. I was avoiding back and forth motions to reduce static build up, but got too confident that the issue was solved on my new one. Great unit other than this design flaw.

There's a thermal sensor and an impeller speed sensor for the motor which act as redundancies to measure the drop another way, and also to cut out the power if the temperature of the motor gets too hot to prevent a fire. The issue most of these vacuums have is that the circuit board and power supply itself warms up and on an example which has inhaled water before (even small bits of moisture), it lightly corrodes the circuitry going to the temp sensor and trips the cut off much earlier than is supposed to. If left with the trigger lock depressed you can observe a unit with this malfunction as it cuts itself out and turns on shortly after, over and over again. until the metal within the circuitry warms up to a point where it suddenly works again until the battery drains out as it expands to compensate for the corrosion. it's all really smart and really dumb.

Great fix, nice 👏👍😊

Awesome video, same issue with mine

I found the same vacuum cleaner with a blocked turbine in the trash. I had to drill two holes in the rotor at the entrance of the turbine and use needle-nose pliers to start the rotor with a relatively large force. Before that, I disconnected the cables from the motor and tried the electronics with a 36V/400W lamp, which works flawlessly. . The engine is running, but the bearing near the turbine has a large gap. Since the whole (engine and turbine) is pressed together, it is impossible to change the electric motor, that's why I decided to install one bearing at the entrance of the turbine. There will be a little more resistance at the intake, but that is not very important to me. In addition, the owner also trashed a working Milwaukee M18 battery with a label saying it was weak? The battery is not weak, but the electronics in the vacuum cleaner reacted to protect the electric motor and battery from excessive amperage. Greetings from Switzerland

*Worked!!!...Mine kept cutting off..Just bypassed that switch..and life is good*

Great job, 👍👍

Awesome thank u

Awesome that u got this to work again. Dont have one but a bit hesistant since so many folks had issues. If i can bypass the switch or thermal sensor that would be an easy fix when warranty runs out but out of my element when it comes to mosfet replacement. Cutting wires would be the way to go but which wires are they and how do u bypass. Comments werent very clear. Pls advise thx.

Hi great videos! Just wondering why so many of your fixed are on Milwaukee products. Are they a favourite of yours?

Вопрос в том на долго ли это статический ток опять сломает эту плату и детали это не надежно я поставил 20 а реле

good video can you tell me where the temp sensor is located?

I wonder if there is a way to hack in a speed controller onto M18 transfer pump? They made it way too powerful, and just collapses every hose I connect to the inlet, even hoses specifically designed for inlet side of transfer pumps. It would be perfect if a "low speed" could be hacked on somehow. A potentiometer style complete speed control would be even better...but anything to slow it down would be cool.

I have the same vacuum when I fire it’s run for 30 seconds and goes off

2 middle pins is SMBus not just dumb sensor leads

Pls help me, i have 1 set like you but when start about 30-45 secs then stop and 10 secs later i can start it, how can i fix it. Love from Vietnam😊

what was the piece you replaced? my vacuum has the same issue. turns on when I short it out

U still reply bro ? I got a problem and i been searching your videos and it dosnt look like u have my issue , is same model but cant get the mottor out , the motor bottom mat(nut) is in a weird circle piramid shape , what could i do

Is this a brushless motor?

What would happen if you just bridged it and left it like that

I didn't see a filter in it

Witam mam taki odkurzacz i po minucie mi się wyłącza muszę odczekać chwilę i znowu odkurza i zaraz się wyłącza i tak cały czas co może być przyczyną ??