Question about Grundfos MQ3-45 1 HP Pressure Booster Pump

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My pump will not shut off, even with the switch. I had to replace the start-up capicitor a week ago, and the pump ran fine until this morning. Now it just runs continuously when plugged in. Pushing the off button does not stop it.

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Open it up again, sounds like wire is damaged, or connection fault.

Posted on Feb 08, 2010

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