Washer earth trips unless it is rocked back & forwards aggressively.

[jaykam]

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Very appreciated forum. Washer earth trips RCCB unless it is rocked back & forwards aggressively. This is a struggle. One brush had worn excessively and tripped and changed. I wonder if there is excessive wear due to uneven commutator causing a pile of debris bridging to brush housing? Any thoughts? Thanks

 

[Electro-tech]

Sounds like you have the answer. How old is the machine?

 

[jaykam]

Sounds like you have the answer. How old is the machine?

Hi, Thanks for replying. Are you basing that on empirical knowledge? I am not confident in my diagnosis hence not yet motivated to struggle to rearrange my pokey kitchen to get it out from under and look for evidence. May be a resistance reading across the plug before and after will clinch it. After a wash cycle, removing the plug can cause a trip too. Washer is an adopted orphan with no known history but I guess 15-20 years.