Bosch Excel laboured motor after brush replacement
Hi All,
Had a Bosch Excel 7 (WAE24468GB/06) for a while now and it's been faultless. However, the other night it refused to spin and posted a F.21 error on the panel. After a reset, it cleared but the motor still was silent.
I ordered some replacement brushes (not Bosch, just pattern parts) and installed them. The original brushes were completely worn out. Now the washing machine flashes F.21 and the AQUA PLUS light is permanently lit.
I have tried to clear the error (power off, on to 6 o'clock, press rpm/spin then move to 7 o'clock etc ) to no avail.
Having said all that, I have been able to start one wash. During the wash the motor was very laboured and the drum didn't seem to spin much. Sometimes it would judder, other times it barely moved. Needless to say the spin never happened!
Now it's back to F.21 and AQUA PLUS light on.
Anyone come across this before?What does the AQUA PLUS light with a fault indicate?
It could be the motor, but maybe it's the "pattern parts" I've used. I really don't know where to turn now.
Any help really appreciated!
Tony.
Solution Summary
AI-generated from this discussion
This thread was marked as solved. Here's a summary of the problem and the fix, generated from the discussion below.
Bosch WAE24468GB/06 F.21 after brush replacement, motor labours
- The problem
- Bosch Excel 7 WAE24468GB/06 stopped spinning and showed F.21. After the fault was reset, the motor remained silent. The original motor brushes were found to be completely worn out and were replaced with pattern parts, but the machine then returned to F.21 with the AQUA PLUS light on. One wash could be started, but the motor was very laboured, the drum barely turned or juddered, and it would not spin.
- Likely cause
- The accepted diagnosis was that if the motor is sparking excessively and labouring after new brushes are fitted, the brushes are either not fitted correctly or the motor armature is worn. Pattern brushes were considered a possible contributor but not confirmed as the sole cause.
- What fixed it
- Check the newly fitted brushes for correct fitment and seating. If the motor is still sparking excessively and labouring, the motor armature is likely worn and the exact repair would require further diagnosis. The thread does not confirm a completed repair.
- Checks to try
- F.21 fault displayed
- Fault reset attempted
- Original motor brushes found completely worn out
- Pattern replacement brushes fitted
- Motor laboured/juddered and drum barely turned during a wash
- Spin function did not operate
- Parts or tools mentioned
- Replacement motor brushes (pattern parts)
Safety: Further diagnosis should be carried out by a suitably qualified appliance engineer.
1 Answer
If the motor is sparking excessively and labouring after fitting new brushes then either the brushes aren't fitted properly or the armature in the motor may be worn. I never liked pattern carbon brushes but they usually should still work - just not last as long.
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