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My MQ3-35 Grundfos pump will run for a few seconds after I turn it on, but then it shuts down and will no longer turn on automatically. Is there a pressure sensing switch that may need to be replaced?

The pump keeps my system pressured and usually turn on a few seconds after opening a tap in the house.

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The pressure switch appears faulty
have it checked /replaced

Posted on Apr 25, 2017

Testimonial: "Thanks Bill."

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