Hi, I have searched the forum and found similar faults but not the same.

Bosch Maxx WFO 2860 Washing Machine (age unknown)

Machine would not spin at all, I changed the brushes, now the machine tries to spin, the Out of balance system cuts in and redistributes the load then tries again 3 or 4 times without success and then shuts down.

I have tried with the machine empty, partial load, full load and many amounts in between, all with the same result.

I assume the out of balance system is software based and uses the evenness of the motor load, is it possible to either reset the system, replace whatever is at fault (what controls the out of balance system?), or bypass the system altogether?

any help would be very welcome

Graham

Could there be some dodgy connections on a controller board which is
tricking the system into thinking its not right? I had this on an old
Hotpoint once and it was a five min job for the guy with the soldering iron
to fix, but a two hour job to get at the bloody thing!

Brian

--
--
From the sofa of Brian Gaff -

Blind user, so no pictures please!
"wistow" wrote in message
...

Hi, I have searched the forum and found similar faults but not the
same.

Bosch Maxx WFO 2860 Washing Machine (age unknown)

Machine would not spin at all, I changed the brushes, now the machine
tries to spin, the Out of balance system cuts in and redistributes the
load then tries again 3 or 4 times without success and then shuts down.

I have tried with the machine empty, partial load, full load and many
amounts in between, all with the same result.

I assume the out of balance system is software based and uses the
evenness of the motor load, is it possible to either reset the system,
replace whatever is at fault (what controls the out of balance system?),
or bypass the system altogether?

any help would be very welcome

Graham




--
wistow

In article ,
"Brian Gaff" writes:
Could there be some dodgy connections on a controller board which is
tricking the system into thinking its not right? I had this on an old
Hotpoint once and it was a five min job for the guy with the soldering iron
to fix, but a two hour job to get at the bloody thing!

With the top off (and power disconnected, obviously) move the outer
drum around on its mountings, and look to see where the wiring loom
flexs. That's most likely where any cable break is, particularly where
any flexing cable is firmly anchored at either end of the flexing, e.g
a cable tie or connector. In the case of a copper break near a connector,
you can sometimes find you can simply pull the remaining loose piece of
copper out of the insulation, so a slight tub on these may reveal the
culprit.

Could also be a bad connection around one of the brushes, including
possibly the spring not pushing it onto the commutator.

Also check the stability weights, dampers, and mounting springs are all
still firmly attached to the outer drum and case framework, although if
it still trips when run empty, this probably isn't the cause.

On most modern machines, out of balance is detected by motor speed/load,
but on some older machines, it can be a movement sensor attached to
the outer drum based on a small weight on a spring, and I suppose if it
had come loose, it might mis-trigger.

--
Andrew Gabriel
[email address is not usable -- followup in the newsgroup]

wistow wrote:
Hi, I have searched the forum and found similar faults but not the
same.

Bosch Maxx WFO 2860 Washing Machine (age unknown)

Machine would not spin at all, I changed the brushes, now the machine
tries to spin, the Out of balance system cuts in and redistributes the
load then tries again 3 or 4 times without success and then shuts down.

I have tried with the machine empty, partial load, full load and many
amounts in between, all with the same result.

I assume the out of balance system is software based and uses the
evenness of the motor load, is it possible to either reset the system,
replace whatever is at fault (what controls the out of balance system?),
or bypass the system altogether?

any help would be very welcome

Graham





I would check the suspension springs first. They can sometimes become
unhooked by an out of balance load.

Tim

"Tim" wrote in message
...
wistow wrote:
Hi, I have searched the forum and found similar faults but not the
same.

Bosch Maxx WFO 2860 Washing Machine (age unknown)

Machine would not spin at all, I changed the brushes, now the machine
tries to spin, the Out of balance system cuts in and redistributes the
load then tries again 3 or 4 times without success and then shuts down.

I have tried with the machine empty, partial load, full load and many
amounts in between, all with the same result.

I assume the out of balance system is software based and uses the
evenness of the motor load, is it possible to either reset the system,
replace whatever is at fault (what controls the out of balance system?),
or bypass the system altogether?

any help would be very welcome

Graham





I would check the suspension springs first. They can sometimes become
unhooked by an out of balance load.

Tim

There will be a filter.
Check it. Near the pump. Probably at the front. You may find something in
there that should not be in there......... a colour catcher.

Thanks for the replies, I have done the following with out any success

Removed and checked brushes -- in right way, seated well, complete wear pattern across face

Both springs connected, and weights secure, although dampers appear to be quite soft/weak, I don't know how strong they should be.

I replaced wires from motor to control board, removed all pipes, pumps, and filters to clean them out (all clean, I don't see why the filters would stop the machine spinning), removed and replaced door seal

I also ran the spin cycle without the drum connected, the machine went through its full cycle (11 mins to 0, does not do this with a load stops at 8 mins) with the motor running up to full speed

I think that only leaves the control panel, unless anybody can come up with something else

Regards Graham