Question about Grundfos MQ3-35 3/4 HP Pressure Booster Pump

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I have a grundfos pump for my bore. It stopped working a few of months ago and we pulled it up, gave the propella (?) a spin. Tested it and it was working. Lowered it into the ground and it worked fine until yesterday. It has been maybe 3 weeks since I had turned it on and it is not working. So I have pulled it out again. Before I get a new one I would like to know whether they cn be fixed. The pump man I had out this morning said no, get rid of it!

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I'm not fimular with this pump but if you can spin the impeller (propellers are on airoplanes) and the motor will start and run it could be a start capicator. This stores elect. and gives the motor a bump in power to start.This will usually be found in or around the wireing box on the motor and should cost about 20.00- 30.00 dollers. You will need to find a service manuel for your pump and the motor that drives it. Good Luck with it, sorry that's all the help I have on that one..

Posted on Oct 05, 2009

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Posted on Jan 02, 2017

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