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Thread: Dead angle grinder

  1. #1
    Master
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    Dead angle grinder

    Hi just got my 240 v makita angle grinder out this afternoon it’s practically new I’ve only used it for half an hour since buying it and it’s completely dead looked at the screw fix receipt and it’s warranty has run out by six months which is Typical does anyone have any idea what the problem might be ?

  2. #2
    Master reggie747's Avatar
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    Quote Originally Posted by Michael 38 View Post
    Hi just got my 240 v makita angle grinder out this afternoon it’s practically new I’ve only used it for half an hour since buying it and it’s completely dead looked at the screw fix receipt and it’s warranty has run out by six months which is Typical does anyone have any idea what the problem might be ?
    Fuse ?
    Is it plugged into a dead extension cable ?
    Try something else in that socket ?

  3. #3
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    Quote Originally Posted by reggie747 View Post
    Fuse ?
    Is it plugged into a dead extension cable ?
    Try something else in that socket ?
    Overly sensitive safety switch? In the past Screwfix have overlooked the warranty date for me. It may be worth giving them a call and see what they say...

  4. #4
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    Quote Originally Posted by reggie747 View Post
    Fuse ?
    Is it plugged into a dead extension cable ?
    Try something else in that socket ?
    Changed fuse tried it in 3 dirrent sockets still dead

  5. #5
    Master
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    Get a meter out and find how far the power goes.

  6. #6
    Master
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    Try screwfix or Makita direct, it will be obvious how little use it has had.

  7. #7
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    Did you register it I’m sure Makita have a 24 month warranty

  8. #8
    Master
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    Quote Originally Posted by lewie View Post
    Did you register it I’m sure Makita have a 24 month warranty
    No I didn't

  9. #9
    The problem may be that they are not great, I had one a while back and it burned out first time I used it - was from screwfix, I took it back. Although if out of warranty you should be able to get it fixed through a service centre. I use dewalt tools now mainly and they are for the most part reliable unless you seriously abuse them!

  10. #10
    Grand Master magirus's Avatar
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    I'd email Makita anyway. A book slid off the bookcase behind my computer desk and hit my Logitech keyboard, snapping the little fold out foot that raises the back of it. It's a snap in thing so I emailed Logitech to ask if the part was available, they sent me a new keyboard by return! Shy bairns get nowt, as we say up here.
    F.T.F.A.

  11. #11

  12. #12
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    Quote Originally Posted by adrianw View Post
    Stuck brush
    How do you fix it?

  13. #13
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    I just thought it was really strange how it went from perfect working order to dead

  14. #14
    My Bosch one made “an expensive brown smell” last week so I replaced it with a Makita one from screwfix just last week
    Had loads of Japanese makita stuff over the years that’s been excellent
    I note that this one was made in Romania
    Time will tell- it was £45 with a voucher so pretty cheap really

  15. #15
    Craftsman eletos's Avatar
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    If they still sell the same model in SF, repurchase and return the faulty one in a few weeks.

    Unlikely there is any batch tracking on this stuff, if anyone looks at the date stamp on the device then it’s clearly NOS.


    Sent from my iPhone using Tapatalk

  16. #16
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    Quote Originally Posted by eletos View Post
    If they still sell the same model in SF, repurchase and return the faulty one in a few weeks.

    Unlikely there is any batch tracking on this stuff, if anyone looks at the date stamp on the device then it’s clearly NOS.


    Sent from my iPhone using Tapatalk


    So you advocate dishonesty for personal gain then

  17. #17
    Master reggie747's Avatar
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    Quote Originally Posted by eletos View Post
    If they still sell the same model in SF, repurchase and return the faulty one in a few weeks.

    Unlikely there is any batch tracking on this stuff, if anyone looks at the date stamp on the device then it’s clearly NOS.


    Sent from my iPhone using Tapatalk
    Remind me to join the queue when you're next selling a watch. Not.

  18. #18
    Craftsman Kris's Avatar
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    Contact Makita and explain the situation.

    Having been to their factory and service department and understanding how they work (due to their sponsorship of my Rescue Team) I'd be very surprised if they didn't step forward and assist you with this.

  19. #19
    Craftsman Kris's Avatar
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    Quote Originally Posted by eletos View Post
    If they still sell the same model in SF, repurchase and return the faulty one in a few weeks.

    Unlikely there is any batch tracking on this stuff, if anyone looks at the date stamp on the device then it’s clearly NOS.


    Sent from my iPhone using Tapatalk
    So you promote Fraud? That's a criminal offence, and in a public forum ?

    I think you'll find that manufacturers and retailers keep better stock control records than you realise.

  20. #20
    Quote Originally Posted by Michael 38 View Post
    How do you fix it?
    If they aren’t removable fir replacement a good whack should do it, brushes can stick when not used for long periods.

  21. #21
    Quote Originally Posted by adrianw View Post
    If they aren’t removable fir replacement a good whack should do it, brushes can stick when not used for long periods.
    If the OP can turn the disc then he can eliminate the brushes being stuck onto the commutator.

    R
    Ignorance breeds Fear. Fear breeds Hatred. Hatred breeds Ignorance. Break the chain.

  22. #22
    Sometimes if you contact a company out of warranty, there is a slither of a chance they will send you another.

    It can happen, I have a food blender die out of warranty and they sent me a much better one for free lol.

  23. #23
    Quote Originally Posted by ralphy View Post
    If the OP can turn the disc then he can eliminate the brushes being stuck onto the commutator.

    R
    Should also check that it’s not a brushless model.

  24. #24
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    Sounds like the brushes need changing to me

  25. #25
    Master Thewatchbloke's Avatar
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    Quote Originally Posted by Mr G Imp View Post
    The problem may be that they are not great, I had one a while back and it burned out first time I used it - was from screwfix, I took it back.
    For balance I've bought many Makita power tools starting in the 1980's and everything I have bought to date is still working as it should do, even my 9v cordless drill bought in 1984 albeit with one new pair of batteries which is understandable!

  26. #26
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    Quote Originally Posted by Hooshabak View Post
    Sounds like the brushes need changing to me
    It's nearly new only been used for half an hour

  27. #27
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    Quote Originally Posted by Thewatchbloke View Post
    For balance I've bought many Makita power tools starting in the 1980's and everything I have bought to date is still working as it should do, even my 9v cordless drill bought in 1984 albeit with one new pair of batteries which is understandable!
    All my other makita kit is great I've contacted them this morning and been told I will proberbly have to pay to have it repaired as its 5 months out of warranty

  28. #28
    Quote Originally Posted by ralphy View Post
    If the OP can turn the disc then he can eliminate the brushes being stuck onto the commutator.

    R
    Quote Originally Posted by Kingstepper View Post
    Should also check that it’s not a brushless model.
    It isn't.

    R
    Ignorance breeds Fear. Fear breeds Hatred. Hatred breeds Ignorance. Break the chain.

  29. #29
    Quote Originally Posted by ralphy View Post
    If the OP can turn the disc then he can eliminate the brushes being stuck onto the commutator.

    R
    The reason I said give it a whack is that it is extremely common for them to stick in their holders, if they were stuck to the commutator it would probably hum, hunt or buzz

    When we used to do 3PL and repairs we used to see hundreds like that.

  30. #30
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    Quote Originally Posted by eletos View Post
    If they still sell the same model in SF, repurchase and return the faulty one in a few weeks.

    Unlikely there is any batch tracking on this stuff, if anyone looks at the date stamp on the device then it’s clearly NOS.


    Sent from my iPhone using Tapatalk
    I can tell you for sure that absolutely there is batch tracking. I worked in this trade for a while.

    Dishonest get.

  31. #31
    Master reggie747's Avatar
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    What size is this grinder ? 4 inch, 9 inch ??

  32. #32
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    Quote Originally Posted by reggie747 View Post
    What size is this grinder ? 4 inch, 9 inch ??
    5

  33. #33
    Master reggie747's Avatar
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    Quote Originally Posted by Michael 38 View Post
    5
    I'd just suck it up and buy a fresh one,

    https://www.howetools.co.uk/makita-g...RoCZJ8QAvD_BwE

  34. #34
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    Quote Originally Posted by adrianw View Post
    The reason I said give it a whack is that it is extremely common for them to stick in their holders, if they were stuck to the commutator it would probably hum, hunt or buzz

    When we used to do 3PL and repairs we used to see hundreds like that.
    Still unlikely. Failures of this kind are generally due to a brush stuck in the brush holder which fails to drop to maintain contact with the commutator as the brush wears. Could be a loose contact, faulty switch. I would take it apart and run a test meter over it but you need to know a bit about sparks really.

  35. #35
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    Take it back, if they start to get difficult tell them sparks will fly

  36. #36
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    Quote Originally Posted by reggie747 View Post
    I'd just suck it up and buy a fresh one,

    https://www.howetools.co.uk/makita-g...RoCZJ8QAvD_BwE
    I’ve just bought a new Makita DGA452Z 18v LXT 115mm Angle Grinder see how this one goes

  37. #37
    Quote Originally Posted by Gurmot View Post
    Still unlikely. Failures of this kind are generally due to a brush stuck in the brush holder which fails to drop to maintain contact with the commutator as the brush wears. Could be a loose contact, faulty switch. I would take it apart and run a test meter over it but you need to know a bit about sparks really.
    Main cause is dendritic growth, usually contamination of the brass holder, I can dig out the SPC figures and root cause analysis if required.

  38. #38
    Master murkeywaters's Avatar
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    Be a man and take the damn thing apart!

  39. #39
    Grand Master JasonM's Avatar
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    Quote Originally Posted by murkeywaters View Post
    Be a man and take the damn thing apart!
    Absolutely!
    Cheers..
    Jase

  40. #40
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    Quote Originally Posted by murkeywaters View Post
    Be a man and take the damn thing apart!
    I have taken it apart and couldn’t see anything wrong eg burning I’m not going to start messing about with it while it’s live as I don’t fancy killing myself over something that’s cost £50

  41. #41
    With a multimeter you can likely find the cause of the problem - and you can do so without it being plugged into the mains.

    R
    Ignorance breeds Fear. Fear breeds Hatred. Hatred breeds Ignorance. Break the chain.

  42. #42
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    Quote Originally Posted by Chabsy View Post
    Take it back, if they start to get difficult tell them sparks will fly
    Like it! Hahahahha

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