Grundfos pump stopped

Niagara STC 2.0 C shower pump has stopped, occasionally starts when given a bash on the top, blue sparking visible from underneath. only 4 years old. am thinking brushes on motor have gone, cannot find spares anywhere. can they be replaced ?
Asked 10 years ago by Anonymous
If it goes with a bash on the top it maybe a faulty PCB.
There are no parts available for the motor.

Answered 10 years ago by Anonymous

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