16 April 2013

Bosch PMF 180e and PMF 190e multi tool, 230VAC

Bosch PMF 180e multi tool just stopped working today. 
(The same apply for PMF 190e)



I was using my Bosch PMF 180e today and it just stopped.
It was strange that it gave up the ghost without smelling burnt or being hot at all.
I had been using it for 10 minutes doing some light DIY.
I decided to open it up to check out what could be wrong. 

9 x screws keep it together (see red circles). I used a normal flat headed screwdriver.


I could not see anything wrong after I've opened it. I used a multimeter in order to check for continuity through the cable and to the coil. Everything was ok. I removed then the 2 screws (red circle) to be able to remove the circuit board. 


I checked for continuity between the orange cable which was connected to the coil (without red circle) and the blue cable connected to the coil. It was ok.
Then I checked the other pair (white cable and the orange cable with red circle). There was no continuity. I realised then that the winding connections had snapped (the thin bit of wire winding where it joins the connector within the red circle).



I soldered the wire winding to the connector and put the multi tool together again. 
Surprise, it worked again.
I think vibration could be a problem for this kind of tool an most probably the reason for the failure.
Upplagd av kl.
Etiketter: ,

175 comments:

  1. Chris Warder7 October 2013 at 22:58

    Hi Jan, thanks to your blog I've managed to fix my multitool. I had the same problem, the tool just stopped working after very little use. I had a broken winding near the orange cable but on the other coil (between orange and blue). Thanks for a great blog.

    ReplyDelete
    Replies
    1. Unknown7 October 2013 at 23:06

      Thanks! Good to know that I could help you! ;)

      Delete
  2. Anonymous25 October 2013 at 23:46

    Hello Jan, i have fixed my tool with your information.
    Thank you verry mutch!!!
    It was verry usefull.

    ReplyDelete
  3. Unknown7 January 2014 at 00:17

    Jan you are a legend, I had exactly the same problem, now resolved thanks to you.

    Mine stopped working in March, but I haven't needed it until recently. Last week I bought a half the price no-name alternative, but then discovered its not exactly compatible with the Bosch accessories, they would have been held purely by friction. So before committing to the new tool and using it, to perhaps discover that my Bosch accessories would come loose meaning I'd then have the not so cheap prospect of buying new accessories, I thought I'd have a quick look online to see if there are any common problems with the Bosch tool... here I am, first page I looked at, will be taking the no-name tool back tomorrow!

    Thanks Jan

    ReplyDelete
    Replies
    1. Unknown7 January 2014 at 06:48

      Thanks! Always nice to get some feedback. Makes it easier to continue the blog :)

      Delete
    2. Unknown19 December 2017 at 16:20

      Thanks Jan - you’ve just saved me £75. I had exactly the same fault and had assumed a burnout in the coil until I read your blog. Found exactly the same loose wire and am about to solder it back. Thanks again

      Delete
    3. Anonymous10 September 2022 at 15:15

      Just worked for me too! Great tip, thanks!

      Delete
  4. Anonymous12 May 2014 at 20:23

    Thanks for the blog, mine is up and running again. :-)

    ReplyDelete
  5. Unknown24 May 2014 at 21:38

    You are a Legend, had the same trouble with mine, opened it up and now 15 minutes later it's up and running again, Thanks a Million.

    ReplyDelete
  6. Unknown15 June 2014 at 15:15

    Thanks Yan had the same problem with my PMF 190E only used it a few times and just stopped as I was cutting through door fame . Had taken it apart but could not to find fault .Found your blog and you were spot on TOP MAN Thanks Glen

    ReplyDelete
    Replies
    1. cookmandy14 April 2016 at 12:59

      This comment has been removed by the author.

      Delete
    2. cookmandy14 April 2016 at 13:00

      This comment has been removed by the author.

      Delete
  7. SPR.godalming15 July 2014 at 09:30

    Interesting you said you ran yours for TEN minutes. I have PMF 10,8LI and I rarely run it for more than 2 minutes as it gets so hot. Mine has stopped working now (6 months old and rarely used) I plan to return it to B&Q - if that fails - get the screwdrivers out. Thanks

    ReplyDelete
  8. Mark2 September 2014 at 16:12

    Fixed my PMF-180E with your guide. It had the same problem. Thanks!!

    ReplyDelete
  9. Raz7 September 2014 at 16:00

    I had the same problem, I followed your instructions, although I was sceptical at the time but continued anyway and surprise surprise it worked. That has saved me going out and buying another or similar tool. Thank you very much for making my day.

    ReplyDelete
  10. Unknown10 September 2014 at 18:58

    Thanks. I fixed bosch pmf 190 e with this article.

    ReplyDelete
  11. Anonymous22 September 2014 at 22:46

    thanks Jan.. much appreciated keep up the good work x scott

    ReplyDelete
  12. Anonymous25 September 2014 at 08:31

    Many thanks Jan, multi tool back to it's noisy best.

    ReplyDelete
  13. Bjørn Harald25 September 2014 at 17:59

    My PMF 190E suddenly stopped working. After finding your post, I managed to fix it.

    Thanks!

    ReplyDelete
  14. Unknown2 October 2014 at 18:33

    Awesome diagnostics Jan. Exact same problem with my PMF 190E. Blob of solder on all 4 wires into the motor and it's working again. Definite design flaw that Bosch should address and/or recall for a fix

    ReplyDelete
  15. Unknown2 December 2014 at 17:52

    Thx jam, you saved my pmf180e. Explanations and pictures very helpful to fix the problem.

    ReplyDelete
  16. Unknown11 December 2014 at 04:02

    Where can i buy bosch power tools online?

    ReplyDelete
  17. Anders Norgren2 January 2015 at 12:19

    Thanks for your excellent guide to bring my dead PMF180E back to life again.

    ReplyDelete
  18. John Clarke31 January 2015 at 16:25

    Many thanks, was able to fix my PMF 190E which just stopped on me last night while I was doing a delicate job. the wife was holding the vacuum cleaner to catch the dust and couldn't understand why I was so upset as it's my favourite power tool.

    ReplyDelete
  19. Stan4 February 2015 at 21:43

    Thanks for the info Jan,

    I have the same tool that stopped working also.
    The problem was the diac (small blue component, located next to the power wires connector, at the side where the wires are connected).

    ReplyDelete
    Replies
    1. Unknown15 April 2015 at 17:32

      Thanks a lot for your info!!
      I could to fix the mine (was an intermitent fault) replacing the diac.

      Delete
    2. roy13 October 2015 at 16:12

      Hi, Can you tell me how to check the Diac and if faulty how do I identify the replacement? I checked all the winding as shown above - nothing wrong. When I re-assembled I got a short (half a second) sign of life then nothing.

      Delete
    3. SteeVeeDee10 January 2016 at 12:11

      Many thanks - just fixed my builder mate's tool that had only had light use and he'd lost the reciept. Soldered all 4 field wire terminals and repacked the rear bearing with grease while I was at it as I noticed it is an open bearing(!) liable to dust getting in.

      Delete
  20. Anonymous12 February 2015 at 00:37

    Thank you! Il fix my PMF190e. Small wire broken on stator.

    ReplyDelete
  21. Anonymous24 February 2015 at 23:17

    Thanks for your blog, my 180 e multi suffered the same symptoms and had the same tiny wire broken off of the winding at the connection. Lightly sanded the wire with fine wet & dry to in order to solder it back onto the connection. A little hard to see due to the size of the wire but did get it soldered back on, tool now back up and running. all fixed thanks for your info.

    ReplyDelete
  22. Anonymous9 March 2015 at 00:03

    Thanks for the heads up and repair...

    ReplyDelete
  23. Anonymous20 March 2015 at 20:00

    Well done for publishing this advice Jan, my PMF 190E failed exactly as described, dismantled it as you show, continuity tested the windings, 20 ohms for one, open circuit the other. Wire too short to reattach so ( bravely) unwound one complete turn very slowly & gently, scraped a section clean of the enamel & soldered it onto the tag. Tested again - 20 ohms all round, excellent. Trimmed off the excess wire & reassembled my buzz saw. Hey presto its a runner. Thank you so much for giving me the confidence to give it a shot.

    ReplyDelete
  24. Anonymous24 March 2015 at 09:54

    Awesome, same fault, fixed!

    ReplyDelete
  25. Anonymous28 March 2015 at 15:55

    Same for me, now up and running again. Thanks!!!

    ReplyDelete
  26. Anonymous27 April 2015 at 12:38

    Bingo, same problem here. Thanks for the tip

    ReplyDelete
  27. Unknown7 June 2015 at 11:11

    Hi Jan . Tried you idea but wires seemed fine , took motor etc out for a closer look and prodded the wires and hey presto one moved , it had sheered off , Dug out old solder iron , and tho i'm not very good at soldering , managed to bodge it . Works great thanks, PS, bosch power tools are indeed worth every penny , i have quite a few which i use daily , also our dishwasher is Bosch too, excellent products , From Mister Fixit Medway

    ReplyDelete
  28. Anonymous6 July 2015 at 20:53

    I have the same problem and I am in the process of repairing it. One question,,,,there is a long wire coming out of the circuit board (black plastic then clear pastic with about 2 cm of bare wire - you can see it on the picture earlier. Where does it go ??

    ReplyDelete
    Replies
    1. Unknown31 July 2015 at 11:48

      Sits in the groove of the plastic shell for that side.

      Delete
    2. Mike Hunt19 December 2015 at 15:07

      but what does it do, does it touch the motor body¿

      Delete
    3. Peter23 August 2016 at 10:10

      I'm guessing it is some kind of heat-protection, if the motor runs for too long, or gets too hot, it automatically turns of.

      Delete
  29. Anonymous14 July 2015 at 16:48

    Same problem, thanks for info, not too easy to re-solder but machine back up and running, cheers.

    ReplyDelete
  30. Anonymous18 July 2015 at 16:23

    Borrowed my fathers tool (82 year old) And it died after 3 min. Google found your site. And the same error. Now must buy a Solder.

    Og skal snart besøke ditt hjemland. Gift med en Svenske :)

    ReplyDelete
    Replies
    1. Anonymous15 October 2018 at 13:03

      Bosch was making making multi tools 82 years ago??

      Delete
  31. Anonymous20 July 2015 at 00:20

    Hi Many thanks for your blog had a closer look at the field winding and sure enough there was a little burn mark on the terminal and when I pulled the wire it came loose. When it stopped working I was in the middle of a job and needed to finish it so I know have a spare

    ReplyDelete
  32. Anonymous29 July 2015 at 14:58

    Hi Jan. Thanks for your invaluable tips. Encountered the same problem with my brand new 190e after a couple of minutes use on my door trim. Followed your steps and got the tool working again!

    ReplyDelete
  33. Anonymous29 July 2015 at 16:27

    where does the long single wire go

    ReplyDelete
  34. Unknown31 July 2015 at 11:53

    As above - it sits in the groove of the left hand (looking down) plastic shell of the tool.

    ReplyDelete
  35. Unknown31 July 2015 at 11:53

    As above - it sits in the groove of the left hand (looking down) plastic shell of the tool.

    ReplyDelete
  36. Anonymous31 July 2015 at 22:57

    Jippi! I repaired my tool. Thanx a bill

    ReplyDelete
  37. Unknown26 August 2015 at 20:05

    Thank you this fixed my 190e

    ReplyDelete
  38. Unknown13 September 2015 at 15:03

    Hi. Thank you for your blog. I repaired my 190 e. Best regards from Croatia.

    ReplyDelete
  39. Unknown21 September 2015 at 12:38

    Continuing the "Thanks". Saved me having to go out and buy a replacement. All working well now.

    ReplyDelete
  40. Anonymous27 September 2015 at 18:29

    Thanks a lot! You have now fixed also a 190e in Belgium!
    Exactly the same problem, its was the very thin wires ;-)

    ReplyDelete
  41. Anonymous3 October 2015 at 01:00

    Tried fixing my PMF 180-E earlier, no success. thought might be bushes. then Googled (bosch 180-E stopped working). top of the page your blog, started to read it, took my 180-E apart again, there it was, a tiny wire. soldied it and hey presto it came back to life. good paqe at the top of the page. spot on keep it up.

    ReplyDelete
  42. Jens Nielsen14 October 2015 at 22:02

    Nice tip. Thanks a lot. I had purchased a 190E last year, and managed to lose the receipt. I took it apart and checked the connections with a multimeter, as no wires seemed broken. Found a bad connection on a wire from the coil. heated up the soldering iron, and 5 minutes later I was in business again. Thanks from a Handyman in Denmark.

    ReplyDelete
  43. Ross21 October 2015 at 09:31

    Nice work my man, just saved my self weeks on waiting time to and from my Bosch service centre. Super cheap connections were doomed to fail.

    ReplyDelete
  44. Anonymous3 November 2015 at 09:09

    Thank you for the info'.
    PMF 190E stopped. Had it about 2 yrs. Very little use of it.
    Was a broken wire to one of the coils at where it is on the connector which was difficult to see, it came away when pulled.

    ReplyDelete
  45. Anonymous12 November 2015 at 15:47

    Thank you for the information. I have a 190E which my son has been using extensively - suddenly stopped. Exactly as you described - very fine copper wire from one coil snapped at attachment to copper blade. Only visible with magnifying eye piece and very difficult to clean ans resolder but hopefully will last.
    David S.

    ReplyDelete
  46. Anonymous16 November 2015 at 18:12

    Bonjour, merci pour l'information j'ai suivi les conseils et l'appareil fonctionne de nouveau.

    ReplyDelete
  47. Anonymous8 December 2015 at 18:43

    you have saved me a lot of fuss and bother. I took the day off to do a job on our box room and the first thing to happen was the multi-tool packed up. after seeing your post, I took it apart and one of the 4 windings had quite clearly become disconnected. soldered it and it worked! thanks very much! David

    ReplyDelete
  48. Mike Hunt19 December 2015 at 15:05

    yes fixed it, the wires weren't broken, just bad connection where they crimpted it. such a well made tool let down by a silly fault. Found it in skip, what does it do!

    ReplyDelete
  49. Mike Hunt19 December 2015 at 16:41

    also wel done Bosch for using screws that you can actually undo with a screw driver

    ReplyDelete
  50. Anonymous2 January 2016 at 20:18

    Mine had the same problem. Very happy I found your page. Thanks a lot.

    ReplyDelete
  51. Unknown3 January 2016 at 16:26

    Hi, many thanks for help !Wire weren't broken, just bad connection. One more time BIG Thanks.

    ReplyDelete
  52. photohodge7 January 2016 at 16:11

    Mate, this post is the gift that keeps on giving - I had the same problem, diagnosed quickly because of your blog and fixed within an hour. Saved my day! Now, if we could only get Bosch to fix the design problem . . . :-)

    ReplyDelete
  53. Unknown2 February 2016 at 16:53

    was hoping that I had the same problem as you, but unfortunately not. I checked the winds and both are approximately 18-20 ohms! All the mechanical parts are moving freely, the circuit board shows no signs of any burned components. It is dead as a door nail!! And there is power getting to the windings. I’m lost as what the problem is, any suggestions would be very grateful. Thks Mike

    ReplyDelete
  54. Unknown5 February 2016 at 15:03

    Great tip, I had one 190E pack up on me about a year ago chucked it in the shed and bought a replacement, that did the same thing, just stopped working, took it apart and sure enough wire was detached, repair worked fine so dug out the one from the shed and would you believe it, same wire, I now have two working machines, one in reserve if the other packs up again and I can carry on working until I can fix it again, I'm a happy man. Rick.

    ReplyDelete
  55. Anonymous8 March 2016 at 22:16

    One more PMF 190 e brought back to life tonight thanks to your tip.
    Many thanks from Sweden. Regards Per

    ReplyDelete
  56. Unknown9 March 2016 at 00:04

    Spot on thanks!!

    ReplyDelete
  57. Anonymous9 March 2016 at 16:56

    Another grateful fan here! Mine is a 190e but the principle appears the same and I located a broken wire. But isn't it thin? Still after a bit of faffing with the soldering iron I'm up and running again. Thanks Jan. Tel Boy Yorkshire

    ReplyDelete
  58. Anonymous9 March 2016 at 17:05

    Another grateful fan here! Mine is a 190e but the principle appears the same and I located a broken wire. But isn't it thin? Still after a bit of faffing with the soldering iron I'm up and running again. Thanks Jan. Tel Boy Yorkshire

    ReplyDelete
  59. Anonymous19 March 2016 at 10:45

    couldn't see any loose or broken wires, but re-soldered all 4 and hey presto it worked. thanks for your tutorial on this.

    ReplyDelete
  60. BluePenguin019 March 2016 at 17:03

    Perfect...many thanx!

    ReplyDelete
  61. Unknown3 April 2016 at 22:09

    Had the same problem and fixed it.
    Many thanx

    ReplyDelete
  62. DavieB25 April 2016 at 15:08

    Brilliant - fixed my PMF190E as well. Many thanks...

    ReplyDelete
  63. Unknown3 May 2016 at 21:34

    Excellent advice bud. I had to look really hard for split in the wire,and thought u were wrong. 3rd time looking i seen it. Brill. Ta.

    ReplyDelete
  64. Mark8 May 2016 at 12:43

    Thanks Jan, thought I would have to buy a new one but mine just needed soldering too. Clear advice thanks so much for posting this.

    ReplyDelete
  65. Mark8 May 2016 at 18:32

    This comment has been removed by the author.

    ReplyDelete
  66. Anonymous11 May 2016 at 18:35

    Read your Blog turned out mine had the same problem as the rest re-soldered the connection and away to go thanks for the tip

    ReplyDelete
  67. Unknown26 May 2016 at 08:49

    Hi thanks for this great post!

    my pmf 180 stopped working and followed your instructions. sure enough there was no continuity between the orange and blue cables.
    the problem is the small wire from the coil does not appear to be broken.

    Have you got any idea what else the problem could be?

    Thanks
    Robbo

    ReplyDelete
    Replies
    1. Unknown26 May 2016 at 09:11

      If there is no continuity, the thin wires from/to the coil or the coil itself is broken.

      Delete
  68. Mike Hunt26 May 2016 at 14:52

    I had same problem. The wires were not broken. The connection to the coil is just crimped. I think you get a small amount of corrosion which stops the contact. You need to carefully clean the wire to the coil next to connection and solder it. It might work then

    ReplyDelete
  69. Anonymous25 June 2016 at 21:19

    My 190 was about to be binned with the same problem broken wire until I read your post. Now working as normal. You've just saved me buying a new one. Thanks Peter

    ReplyDelete
  70. ppmoore2 July 2016 at 21:34

    I also had the same problem, the thin connecting wire to the field coil broke off. Seems like a design fault on Bosch's side. Thanks for the blog, found it by googling.

    ReplyDelete
  71. ppmoore2 July 2016 at 21:37

    I also had the same problem, the thin connecting wire to the field coil broke off. Seems like a design fault on Bosch's side. Thanks for the blog, found it by googling.

    ReplyDelete
  72. Keith2 July 2016 at 23:52

    Thanks for taking the time to explain this, soldered the wire back and all ok.. After all these years Bosch are still selling this junk, they should be ashamed

    ReplyDelete
  73. Tim10 July 2016 at 11:39

    Great tip.
    Spent 30 minutes looking for the receipt to return my PMF190E to B & Q without success, then 10 minutes repairing the broken connection.
    Bosch should be ashamed of themselves for not addressing this obvious manufacturing fault!!

    ReplyDelete
  74. Anonymous16 July 2016 at 22:43

    This worked very well for my PMF190E too, I couldn't find what was wrong until I read your post. Same broken wire, although very hard to see. Fixed and hopefully it'll last for a while.

    ReplyDelete
  75. Pezlin11 August 2016 at 07:59

    Thanks! I had the same problem with the tiny cable being broken or at least didn't have any connection. Since I didn't have a soldering iron I simply untwiated the tiny cable one lap from the coil and twisted it around the connection instead. Works like a charm!

    ReplyDelete
  76. Unknown20 August 2016 at 20:38

    Thanks, you saved me too. You're welcome by for a couple of beers!

    ReplyDelete
  77. Peter23 August 2016 at 10:03

    Thanks - you just saved me from buying a professional bosch multi cutter. Exactly the same problem as you. There wasn't enough coil-wire so had to unwind one trip of the thin cobber wire to reach, sodered it to board and bam! it works =)

    ReplyDelete
  78. Unknown23 August 2016 at 21:43

    Thanks for the hint. My 190 stopped working this afternoon in the middle of a job. Found the broken wire with a little black burn mark.
    Soldered up and back in business.

    ReplyDelete
  79. Anonymous6 September 2016 at 14:28

    Thanks for the guide. I unplugged and re plugged the white wire and the tool is now working again!

    ReplyDelete
  80. Unknown7 September 2016 at 12:54

    Hi Jan

    I was so glad to find your blog as my Bosch PMF 180 E has exactly the same problem and with your help found exactly the same fault! Now to brush up on my soldering skills ��
    I guess it seems to be a design issue

    Thanks again as this has saved me some serious cash!

    BR
    Jon

    ReplyDelete
  81. Unknown17 September 2016 at 12:56

    Dude Thanks had the same problem my looks a bit different inside but shame thing.
    PMF 190 E

    ReplyDelete
  82. Unknown1 October 2016 at 11:57

    Hi, thanks for this article, I had exactly the same problem and on stripping down the tool found one of the thin wires off the coil had come loose. A little bit of solder saved me buying a new tool. Bosch must be makinga small fortune off this problem!!

    ReplyDelete
  83. Anonymous2 November 2016 at 22:49

    ....and another repair thanks to this blog.
    well done Jan for the info.... seems you have saved quite a few people either a costly repair or from purchasing a new tool.
    well done. :)

    ReplyDelete
  84. Anonymous10 December 2016 at 14:28

    What a great blog......just fixed my PMF19E; had a fractured wire to the field coil which was no doubt caused by the tool vibration. Soldered it directly back to the terminal and that was all that was wrong! I added a local drop of glue between the 'white coil body' and the fine coil wires (x4 positions) just before they connect to help 'vibration fracture' again maybe!? Perhaps Bosch should think of doing something similar.

    ReplyDelete
  85. Anonymous12 December 2016 at 14:01

    Exactly the same problem on the 190e but now fixed. Amazed Bosch haven't done a recall for such a common fault.

    ReplyDelete
  86. Anonymous12 December 2016 at 16:20

    Same here. Same problem and same solution. Great tip.

    ReplyDelete
  87. Moose15 December 2016 at 15:52

    I had exactly the same problem on my tool, I doubt I'd have found it without your help so thanks very much for sharing this.

    ReplyDelete
  88. Anonymous22 December 2016 at 00:10

    What is the number on the blue little diac

    ReplyDelete
  89. Anonymous7 January 2017 at 15:21

    3 years on and your blog is still helping out Bosch owners. 190e now fixed many thanks

    ReplyDelete
  90. Unknown11 January 2017 at 18:03

    hi my 190e died on me today ran out of cover two weeks ago as well looked up about my problem and came across your blog looked at the connections and there was a wire off soldered back on all working thank you very much

    ReplyDelete
  91. jojo12 January 2017 at 23:08

    This comment has been removed by the author.

    ReplyDelete
  92. jojo12 January 2017 at 23:10

    Bosch PMF 180e :There is a blue little Diac near 220v in on the electronic board . What is the number on this little blue one.

    ReplyDelete
    Replies
    1. jojo12 January 2017 at 23:15

      Anyone please i have lost the component

      Delete
  93. Unknown10 February 2017 at 11:53

    Hello Jan!
    Just fixed mine also!
    Thanks for your help.
    Best regards
    Pontus in Sweden

    ReplyDelete
  94. pompetfred14 February 2017 at 20:55

    Hi I am a volunteer in Historic Dockyard Portsmouth our machine croaked in the same manner, couldn't find anything wrong first time so been looking for a circuit board but now will have another hit using your guidelines. Will let you know how it goes. Regards
    Pompeyfred

    ReplyDelete
  95. CHRIS MOSS17 February 2017 at 01:29

    Amazing can't thank you enough for your shared info,I've just fixed two of these that were destined for the bin.
    Both had the exact same problem, both now re-soldered and ready for work again in the morning,
    Many thanks Chris Moss of Anglesey Wales.

    ReplyDelete
  96. JS17 February 2017 at 09:03

    Also saved a 190 in Denmark ;@)
    Thank you very much

    ReplyDelete
  97. Anonymous11 March 2017 at 15:36

    Same problem, same fix. To support the wires near the crimp, I carefully applied solder tip about 5mm down to wire, heating it to melt into the nylon support so that the wire became flush with the surface

    ReplyDelete
  98. Anonymous6 April 2017 at 19:05

    Brilliant. Thank you so much. Mine stopped halfway through a job. Saved me buying a new one.
    Thank you

    ReplyDelete
  99. Anonymous21 April 2017 at 16:28

    Many thanks,I had a pmf190e just stopped working, wasn't over worked. Removed cover and no signs of burning, read your review and found winding wire had broken, soldered back on and off we go again many thanks

    ReplyDelete
  100. Billy Buzzsaw21 April 2017 at 23:47

    Excelent advice, This saved many hours slaving over a hot multimeter trying to fix my fiends PMF 190 E. I too could't find anything wrong with the control board and decided to have a quick look on the internet to see if anyone else had the same problem, Hey presto, there you where, Magic.
    Many Thanks

    ReplyDelete
  101. ChrisG20 May 2017 at 13:42

    Stumbled across your page and it gave me the confidence to open up a broken 190e. Sadly, the armature stack is borked rather than a loose connection, but I appreciate the posting.

    ReplyDelete
  102. nexsad3 June 2017 at 03:23

    hi, where do i solder that snapped/cut wire in your picture? thanx in advance

    ReplyDelete
  103. Gavin Grimmer3 July 2017 at 11:30

    And another one fixed in New Zealand - same problem as shown on your post .... Many, many thanks!

    ReplyDelete
  104. Håkan23 July 2017 at 08:00

    Saved a 190 e, TKS

    ReplyDelete
  105. Paul in UK7 August 2017 at 14:52

    Thank you for the post, it also fixed a unit here in the UK.. I managed to unwind some wire from the coil to give more length for the soldering repair. Thanks again.

    ReplyDelete
  106. Tim11 August 2017 at 13:56

    Same problem on a 190 and same fix. Had it for about 7 years but very lightly used in that time (maybe a couple of times a year).

    Klutz that I am though, I tested my repair before reassembly and the thing flew onto the floor, so then I had to fix it again...

    Definitely a Bosch design flaw given the mumber of people who have commented!

    Many thanks for your blog, still proving useful after all this time :)

    ReplyDelete
  107. Graeme Fulton16 August 2017 at 08:55

    Many thanks. The fault that you highlighted and fixed was identical to mine.

    ReplyDelete
  108. Ian Anderson21 September 2017 at 00:04

    Takk Jan!
    Identical problem, (which I missed after a quick 'on site' teardown). On the one hand this cost me 3000NOK (the cost of a new Fein) but on the other, man what a machine the Fein is! It cost three times as much as the Bosch, but it is five times as good, so I'm happy the Bosch failed in a way... And thanks to you and your eagle eyes, I now have a spare machine to lend out! Cheers from a Brit next door in Norway ;-)

    ReplyDelete
  109. jan13 October 2017 at 17:44

    Thanks, Jan!!
    Same problem on my 190, died just while working. And nothing noticeable on the wires or connection internally!
    Soldered the 4 connections, and presto, back to life!
    Thanks for documenting such a stupid design failure. And the new PMF 220 still is identical internally to this crude design!

    ReplyDelete
  110. TheScott17 October 2017 at 17:43

    Thank you for those blog ! It has saved me twice. I had this problem 3 years ago and totally forgot the repair. Today I used the tool again and it died... found this blog again and my 180 lives again. Once again.. Thanks Heaps...

    ReplyDelete
  111. Anonymous22 October 2017 at 19:16

    Thank you i had the same problem bosch pmf 190 E

    the tiny cable from the coil broken.

    ReplyDelete
  112. velo-ravel.net25 October 2017 at 15:28

    Thanks Man !

    Here you can find pictures of the 190 model
    https://photos.app.goo.gl/0OMRjYxcl6CoJnLU2

    ReplyDelete
  113. velo-ravel.net25 October 2017 at 15:31

    I'm wondering if Bosch has taken any action to correct the problem for the recent new machines that they are selling.

    ReplyDelete
  114. Unknown3 November 2017 at 18:56

    You are the man I’d buy you a pint it was my second multi tool the first did the same and I’ve had it since 2013 and only used it a hand full of times and it let me down but yiubeas bang on the money with the fix

    ReplyDelete
  115. Anonymous11 November 2017 at 19:03

    You are the man!!! Fixed in no time

    ReplyDelete
  116. happy Bob25 November 2017 at 17:45

    You are a superstar. Thanks for taking the time to put your fix online. Saved me having to buy a new one, It's a fantastic bit of kit. Thanks again.

    ReplyDelete
    Replies
    1. BaldEagle1007 December 2017 at 13:39

      Thanks to you I have just repaired my Bosch PMF180E exactly as you described.
      I would argue that this tool is not fit for purpose given this design fault or is this clever marketing called design obsolescence. Thanks again.

      Delete
  117. Anonymous9 December 2017 at 23:17

    Well spotted. This PMF 190E mending blog is record breaking. Wouldn't have spotted until I read your blog. Pulled at wire and it was broken in the crimp. Soldered and working now. Hearty thanks from UK

    ReplyDelete
  118. Unknown10 February 2018 at 12:26

    Thanks mine has just done the same thing will check

    ReplyDelete
  119. Anonymous22 March 2018 at 20:45

    HI Jan,
    Thanks a lot for your blog wich give me the solution to repair my tool PMF 190 E with the same issue.
    Best regards frome France
    Laurent

    ReplyDelete
  120. Bob23 March 2018 at 16:33

    Just to say that I've fixed my PMF 190E in exactly this way - and the same fault can occur on the Dremel 3000. I suggest dismantling the tool when new - before it fails - and adding a small amount of hot melt glue around the end of the fine wires (all 4) to give some vibration relief.

    ReplyDelete
  121. Unknown24 April 2018 at 13:48

    Another machine saved today, thanks Jan. mvg Roger

    ReplyDelete
  122. Anonymous5 June 2018 at 13:53

    Fixed my tool too Jan! Cheers!

    ReplyDelete
  123. Fletch20 June 2018 at 22:33

    Fixed mine today, thank you for the info, it was spot on,although my soldering skills are rubbish. Surprised Bosch haven't done something about it, disappointing. Thanks again.

    ReplyDelete
  124. Ivan22 July 2018 at 10:59

    And one more PMF180E has been saved from the garbage thanks to Jan ;) Thank you!

    ReplyDelete
  125. Anonymous29 July 2018 at 15:34

    Saved mine as well thanks to this little tutorial!

    ReplyDelete
  126. Rav1 September 2018 at 22:19

    Continuity on my coils and armature and brushes were fine. No broken wiring joints found. Suspect it's the diac as I occasionally feel a slight kick on power up. Will try swapping blue diac marked X951 with a bog standard db3. Watch this space.

    ReplyDelete
  127. Rav15 September 2018 at 22:23

    Update to my last message. The DB3 diacs arrived on a slow boat from China (20 for a pound Inc postage). On desoldering the suspect diac, it was fractured in half (without any force being applied to it). I replaced it with new DB3 and it's spinning again. Happy days :-)

    ReplyDelete
  128. Anonymous30 October 2018 at 21:24

    Thanks a lot for this post! My wire didn't look broken, but I put some solder on it anyways and it came alive again!!

    ReplyDelete
  129. Unknown3 November 2018 at 17:03

    Another PMF190E saved here too. This post must have saved £000’s in replacement tools and probably a tiny bit towards saving the planet too!

    ReplyDelete
  130. Muhammad Hassan11 December 2018 at 18:47

    This is my first time visit to your blog and I am very interested in the articles that you serve. Provide enough knowledge for me. Thank you for sharing useful and don't forget, keep sharing useful info: Multi tool blades pack

    ReplyDelete
  131. Gerry20 February 2019 at 21:16

    Another PMF190E fixed. Thanks Jan.

    ReplyDelete
  132. Fought20 February 2019 at 21:44

    Same with my 190E

    ReplyDelete
  133. Andrew Radford17 May 2019 at 19:46

    What an amazing blog, thank you for the info, my multi tool stopped yesterday, fixed today, exact same problem, kind regards Andrew

    ReplyDelete
  134. KEITH6 June 2019 at 16:22

    As with everyone else, thank god for the internet and yourselve

    ReplyDelete
  135. Anonymous15 September 2019 at 14:36

    Thanks for the blog ... Exactly the same thing happened to my PMF 190e. Blob of solder, as recommended sorted it out. One tip, don't be too elaborate when soldering - tried winding around another piece of wire first and then soldering which of course doesn't work as the thin wires are insulated. Doh!

    ReplyDelete
  136. Ash Green12 June 2020 at 12:10

    Wow :)
    This is an incredible collection of ideas!
    Waiting for more helpful pieces.
    You would amazing to read a similar one here-
    DiYsBest

    ReplyDelete
  137. Unknown22 June 2020 at 00:31

    Did this found a brocken wire from windings to connection and after soldering a'bridge' all wirking great THANK YOU..

    ReplyDelete
  138. Anonymous16 August 2020 at 21:37

    One more thank you from Finland, managed to repair my PMF 180 E! ��

    ReplyDelete
  139. Unknown26 August 2020 at 01:20

    This gem is still helping around the world! Many thanks from NZ.

    ReplyDelete
  140. Mika11 September 2020 at 04:27

    Worked a treat. Pulled it apart once and didn’t notice the broken stator wire. Read this, opened it up again and sure as eggs, one was broken. Quick solder and we’re back in business! Thank you!

    ReplyDelete
  141. Richie3 October 2020 at 18:19

    Thanks for this. Just done the fix and all operational.

    ReplyDelete
  142. Unknown13 February 2021 at 12:33

    Well what can I say. My Bosch PMF 190 has been sitting in my shed for a couple of years after it stopped working suddenly one day (think it actually was intermittent for a brief period beforehand). Read this and thought ‘surely not’. Dismantled the tool and took out the circuit board as shown above - at first couldn’t see anything but after careful prodding one of those wire was indeed detached. Unbelievable. One blob of solder later and the damn thing sprung back to life. Such a well made tool let down by such a simple design fault. Thanks for making this blog post!

    ReplyDelete
  143. Anonymous6 March 2021 at 18:26

    And yet another Bosch multitool saved from being thrown into skip. Thank you for this post!

    ReplyDelete
  144. Opa7014 May 2021 at 00:39

    May 2021 and your fix is still so valuable: my PMF 190 stopped working all at once and after a first look I didn't notice anything, now I found the lose wiring and soldered it back! Many thanks from Holland!!!🤜🏼🤛🏼🤗

    ReplyDelete
  145. Will Moindrot3 June 2021 at 01:00

    Thanks also from me. Opened it up, slipped out the circuit board and drive. For me it was the blue connection where ther was a break in continuity. Everything looked ok so I was scratching my head, but it wasn't until I used a very small precision screwdriver to tug slightly on the end of the coil that the break was exposed, I varified this by testing the end of the copper wire against the otherside. So then I put a blob of solder to reconnect and voila. Thanks, Will

    ReplyDelete
  146. Ian Lloyd2 July 2021 at 13:22

    Thanks Jan, exactly the same problem. Saved me buying a new machine.

    ReplyDelete
  147. Unknown18 September 2021 at 11:56

    And still this tip is helping people fix this. Mine wasn't an obvious break but definitely no continuity on one of the circuits. Removing the wires from the clips and sanding them I could get circuit. Soldered them back on and all is good. Thank you.

    ReplyDelete
  148. Unknown11 March 2022 at 22:26

    what is the thicker black wire that has a exposed copper end,single wire, it is live,but just sits there ????

    ReplyDelete
  149. Chris11 April 2022 at 20:13

    I appreciate the information - I have a different fault with mine.

    I have a Bosch PMF 180E - It is essentially 'working' but not cutting. When I push the blade into material, it is as if the main body of the unit (and the main body of the blade) are oscillating, but the cutting teeth at the end are not - So it does not cut. Like the oscillation of the device is not powerful enough to transfer the energy all the way through to the cutting edge of the blade. Does anyone have any ideas what could be the issue? I've tried brand-new blades - The same issue occurs (so it is not the blades) - Thank you

    ReplyDelete
  150. Anonymous25 July 2022 at 22:08

    Skitbra sida, fixade min PMF 190 E på en gång
    bara att löda alla fyra punkterna i statorn
    Great site, fixed my PMF 190 E
    just solder all four points in the stator.
    Thanks!!!

    ReplyDelete
  151. Christer25 July 2022 at 22:12

    Skitbra sida, fixade min PMF 190 E på en gång
    bara att löda alla fyra punkterna i statorn Bra
    sida, fixade min PMF 190 E
    bara löd alla fyra punkter i statorn.
    Tack!!!

    ReplyDelete
    Replies
    1. Christer26 July 2022 at 23:31

      Enda problemet var, att lindningen i statorn och en liten mässingsplåt, måste jag göra ren först. Skrapade med liten kniv, samt rengjorde löd-ställena med lödpasta. Sedan är maskinen som ny och orsaken är säkert att den skakar ganska mycket när man kör den! Jättebra sida detta.

      Delete
  152. Sound Deadening Store15 November 2022 at 16:05

    This content is very unique. Thank you so much for sharing this information. I really appreciate to this content and impressed with website. I hope you like this my compliment. sound deadening van

    ReplyDelete
  153. Anonymous7 January 2023 at 14:17

    Hello Jan, I found the same broken wire fault today on my PMF180E, thanks for publishing it. It failed when it was quite new and has been hiding in my garage for a few years. Even the carbon brushes have a visible part number on the surface that wears, so it can't have taken long to fail. Seems that this must be a manufacturing fault since it is so common, I wonder if Bosch have done anything about it. Many thanks!

    ReplyDelete
  154. Anonymous27 October 2023 at 11:13

    Thanks for the information, fixed my PMF180E today. Same issue.

    ReplyDelete
  155. Anonymous31 January 2024 at 15:35

    Annoyingly it doesn’t seem to be snapped on mine but I’m going to take a more thorough look tonight as it stopped working for no reason as so many others . By the way, what is the brown stiff wire for with black tape around and where should it go as I didn’t see where it came from when dissembled and don’t want to connect it to wrong thing and get shock or something. Thanks in advance.

    ReplyDelete
  156. Anonymous19 February 2024 at 02:06

    Have had the exact same issue with the Bosch Multitool, Grinder. Made around the same time. Just stops, not working hard, no overload, the tools have very little use. Just stops. Obviously whomever the company has making the switches at the time were not very good.

    ReplyDelete
  157. Anonymous1 June 2024 at 21:11

    Hei Jan. I see this is old but still hoped for response. My unit had the same flaw and I found a loose cable. But soldering it didn't work.
    I also see that both blue and white cable has continuity to the same orange, but neither to the other. So since both ha e continuity to the same, does that.mean the coil is trash most likely?

    ReplyDelete
  158. Anonymous22 September 2024 at 00:23

    Cool and I have a keen supply: Does Renovation Increase House Value renovations to increase home value

    ReplyDelete

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