Question about Pentair 1.0 Hp Whisperflo Pump

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Pump motor makes loud noise when pump comes on

I have a 1.5 hp motor makes loud noise on start up then goes away

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  • khadiyev May 11, 2010

    like air noise or buzzing noise?

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Is it something easy to fix or would have to replace the pump?

Posted on May 02, 2013

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If this is a high pitched sound, then this sounds like you have bearings that are starting to go out.  There is not much that you can do to prevent eventual failure.
The only other option that I see is that there is something causing friction inside the pump between the impeller and diffuser.  

Posted on Jan 12, 2009

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Posted on Jan 02, 2017

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