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    joanwebb's Avatar
    joanwebb Posts: 1, Reputation: 1
    New Member
    		  
    #1

    May 31, 2009, 12:04 PM
    Pool pump running backwards!
    What can cause a pool pump to run backwards and how can you fix it?
    Stratmando's Avatar
    Stratmando Posts: 11,188, Reputation: 508
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    #2

    May 31, 2009, 12:41 PM

    If it was misswired, it could run backwards, don't know of anything that can fail to cause that.
    ballengerb1's Avatar
    ballengerb1 Posts: 27,378, Reputation: 2280
    Home Repair & Remodeling Expert
    		  
    #3

    May 31, 2009, 07:28 PM

    The only thing I can even imagine is a pump impellor that is losing blades and the broken parts are changing the flow. This would be my first in 60 years though.
    theboysteely's Avatar
    theboysteely Posts: 8, Reputation: 1
    New Member
    		  
    #4

    May 31, 2009, 08:11 PM

    The socket to the pump may be wired wrong(reverse polarity)check the plug or the wiring from the fuse box to the pump make sure positive and negative are in the right order,r if the pump has more than 1 gear you may just need t flip a small switch in the base
    Stratmando's Avatar
    Stratmando Posts: 11,188, Reputation: 508
    Uber Member
    		  
    #5

    Jun 1, 2009, 05:08 AM

    Reversed polarity won't do it, but swapping wires in the Motor can.
    ed4636's Avatar
    ed4636 Posts: 1, Reputation: 1
    New Member
    		  
    #6

    Jul 7, 2012, 10:03 AM
    The pump impeller appears to run backwards, but it's not. It's a vacuum pump, not a pressure pump. If there's a leak at the pump skimmer lid, it can't pull a vacuum. Lesson: check the most simple aspects of vacuum loss first.

    Ed
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