[OldBob]

Thank you for your suggestion Dave.

I have removed the motor again today and checked each of the commutator segments on 20M range and there appears to be no leakage to earth. Similarly I checked the field coils and found similarly. In view of this I removed the brushes which looked fine but gave them a good clean up, lots of carbon around the housings. While the brushes were out I wrapped a strip of 600 emery paper around the commutator and spun the motor until the brass segments were clean and reasonably polished. I carefully cut between the segments to remove any carbon deposits and finished off by giving it a really good clean with specialist contact cleaner and a small stiff bristled brush.

I replaced the motor and tried it on a spin cycle and it ran fine without tripping the RCD. Hopefully on Wednesday I can reinstall the machine and try a wash cycle. Here’s hoping! Thanks again.

Bob

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