Carbon brush wear

[mike4369]

Washer/Dryer Model WDYN9646G-80 with CESET motor. I have had to change just one of the brushes on the motor three time now because of excessive wear, the other brush is not wearing out as fast – can anyone shed some light on why only one brush is affected?

[iadom]

Re: Carbon brush wear

How long between changes?

In 99{e5d1b7155a01ef1f3b9c9968eaba33524ee81600d00d4be2b4d93ac2e58cec2d} of cases it means a new motor sadly.

[Martin]

Re: Carbon brush wear

The brush that wears the most is the ‘leading’ brush and the other the ‘trailing’ brush. More power and strain electrically is placed upon the leader hence why, in the prolonged high speed spin cycle, it is the first to wear out!

[Martin114]

Re: Carbon brush wear

It only seems to happen when the motor is controlled with DC so I would imagine the current flow from the positive brush toward the negative brush is “giving up” material ?

[Martin]

Re: Carbon brush wear

Martin114 wrote:It only seems to happen when the motor is controlled with DC so I would imagine the current flow from the positive brush toward the negative brush is “giving up” material ?

Back to training school for you then. :rolls:

[timdowning]

Re: Carbon brush wear

It’s definitely on the 1600 spin hoover models with the dc module at the bottom. Had another one this week. 5 years old. One brush completely gone the other as good as new.

[mike4369]

Re: Carbon brush wear

Thanks for all the replies. Fortunately it’s about once a year I have to change the brush so will put up with it until a replacement machine is wanted.

[Author]

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