New Neff w/m motor won’t work?

[Martin]

I’ve got a customer with a Neff V4380X0GB/13 integrated washer-dryer where the armature has overheated and the commutator segments have loosened. I ordered a brand new motor (Part No 140867) and fitted it last Saturday but sadly it doesn’t work???

Plugging in the old motor (which still works) proves the connections are fine to it. The motor is brand new, never been used and it appears to have continuity (though I don’t know the wiring sequence within of course?) and I’ve never had a faulty motor from BSH ever???

Bosch technical dept say it’s the correct part and that there’s no modification listed for it to be fitted, just simply a straight swap over should do the trick?

Has anyone come across a similar motor problem before I wonder?

[superfix]

Re: New Neff w/m motor won’t work?

Martin

Check the tracks on the pcb part no. 295666 if memory serves.

Had a similar thing not so long back with raised segments on motor blowing the board 🙁 .

Not a cheap part to replace though if this is the problem.

[Martin]

Re: New Neff w/m motor won’t work?

Thanks boro for that, but why when I plug the old motor back in it runs OK (tumbles on wash etc) but the brand new Motor won’t??

[superfix]

Re: New Neff w/m motor won’t work?

Hmmm, that certainly is a weird one. :haier:

Can only really think that it is indeed a faulty new motor, if the old one is tumbling, but the new one isn’t.

[leavemetogetonwithit]

Re: New Neff w/m motor won’t work?

Or an intermittent contact somewhere. (Wiggle wiggle?Poke and prod?).
Mike.

[gegsy]

Re: New Neff w/m motor won’t work?

Martin
I have had some motors where upon insertion of plug; one or two of the pins on the motor retract thus causing zero contact.

Greg

[Martin]

Re: New Neff w/m motor won’t work?

gegsy wrote:one or two of the pins on the motor retract thus causing zero contact.

Nope Greg, they’re fine and I even changed the motor end frame/brush housing to be sure the brush unit was OK. 🙁

I even tried swapping the new armature into the old motor BUT the new armature is shorter and would’nt fit. I then swapped the old brush unit onto the new motor, which worked but there was a burning smell so I abandoned that idea and gave up at that point 🙄

I wonder what the 261840 “Cable Harness” is that’s listed on the website alongside the 140867 Motor? Is that a wiring conversion harness in order to get this slightly smaller motor to work maybe???

Bosch Technical don’t know that’s for sure 😕

[leavemetogetonwithit]

Re: New Neff w/m motor won’t work?

[quote=”Martin I then swapped the old brush unit onto the new motor, which worked but there was a burning smell so I abandoned that idea and gave up at that point 🙄

Isn’t there a t.o.c. built into the brush unit/end frame on Bosch motors? Could that one be duff?
(Although you say you tried changing the end frame).
Mike.
PS Did you try running the new motor on a flying lead?

[Martin]

Re: New Neff w/m motor won’t work?

No TOC on this one Mike and I wouldn’t have a clue how to wire up a flying lead one one of these to dare try 🙁

[BSH-MAN]

Re: New Neff w/m motor won’t work?

Part may be incorrectly packaged.
It has been known.
🙂

[leavemetogetonwithit]

Re: New Neff w/m motor won’t work?

Martin wrote:No TOC on this one Mike and I wouldn’t have a clue how to wire up a flying lead one one of these to dare try 🙁

Choose a nice day and take the motor out in the backyard in case it turns into a small bonfire. 😆 Check visually and with meter which wire in plug goes to which bit of motor.Use 3 amp fuse and RCD thing for max safety. Have fire extinguisher handy in case. 😆
Live in one brush terminal on the motor plug. A link-wire out the other brush terminal and into one of the field coil terminals. Neutral out of another field coil terminal. Check resistance (probably 4 to 10 ohms) between live and neutral on plug. Keep the motor still with your foot on it as you switch on. Give it only the briefest short burst to try first. Feel like I’m trying to teach my granny to suck eggs.

There’s bound to be a TOC in there somewhere and they have been known to fail or even go intermittent though it would of course be pretty darn’ rare for a brand new one. If it isn’t in the end bracket it’ll be tucked into the field coil windings.All good fun.
Mike.

[Martin]

Re: New Neff w/m motor won’t work?

Thanks for the motor ‘hot-wire’ tip Mike. I will pass on that idea and just hope that the 2nd motor Bosch have sent me, works when I plug it into the machine tomorrow morning?

So far I’ve got 2 brand new motors, both identical, both have the same resistance readings and both have cost me a total of £300 so far 🙁

Bosch will only refund me if they find either or both motors are faulty, so I am up a creek without a paddle so far on this job. They also weight a fair bit in postage costs to return them (probably 20 quid each I guess?)

So I lose out whichever way unless that is, if the motor works tomorrow?

What puzzles me is why the old motor (although has an arcing commutator segment) still works fine when I plug it in but the first new motor didn’t? Also on the Neff website they show a ‘Cable Harness’ alongside the motor, is that a conversion lead to make the new motor work? Bosch Technical say no (though they have no idea what that cable harness is or why its listed??)

I have a feeling tomorrow will be a bad day for me 🙄

[leavemetogetonwithit]

Re: New Neff w/m motor won’t work?

Martin wrote:Bosch will only refund me if they find either or both motors are faulty, so I am up a creek without a paddle so far on this job. They also weight a fair bit in postage costs to return them (probably 20 quid each I guess?)

So I lose out whichever way unless that is, if the motor works tomorrow?

Bosch Technical … they have no idea what that cable harness is or why its listed??

Bosch technical have never been any use to me either. Dunno why they exist if they can’t be of use to anyone. Not very fair terms of business are they? You’d have been better off putting a request in classifieds for a second hand motor. I got a nice new one for half new price from Mark last August and a good Indesit one from Phil in November. (It’s a long time I haven’t bought a brand new motor and longer still a module). If more people would start really using “classifieds” forum we could get some of these garage loads of “waiting” parts moving and not cluttering our garages. And we’d all make more money. 😀
Mike.

[Martin]

Re: New Neff w/m motor won’t work?

Deep joy!…..The 2nd motor works!!!

Ahhh… but I have to confess now 😳 , and top marks go to boro on this one (plus a bit of help from gegsy supplying a wiring diagram, thanks Greg 😉 The 2nd motor did not work this morning when I plugged it in, and remembering boro’s comment on the module I took a look at the tracks this time 🙄

😯 Darn me wasn’t one track blown, so out with the soldering iron and a link wire……sorted…..new motor works a treat. 😀

Lesson learnt here :- if the old motor still works but a new one doesn’t, best take a butchess at the module in case a track has blown as well ❗

[gegsy]

Re: New Neff w/m motor won’t work?

:lesson: Noted and will watch for that thanks for the info Martin 😉

Greg

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