Get to know your machine... It actually saved us having to buy a new washing machine as I found that the brushes had gone, my wife was all for buying a new one from Argos for £600 today...

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Before you buy a new motor, buy new brushes, take the motor out and thoroughly dry it by taking it to a high pressure tyre hose at the petrol sation. If there's still a problem, at least you have spare brushes for the new motor you'll need to buy.

In future, dry run your motors after every single job, for at least a couple of minutes....
Let us know how you get on....