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Thread: Pump bonding wire tripping gfi

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    Pump bonding wire tripping gfi

    Hello group,
    I recently got a Inteliflo VS and installed a GFI(previous pump was not connected to GFI).

    Everything works fine until I connect the bonding wire to either the copper plumbing or to nearby underground conduit.

    This causes the GFI to trip. The original pump did not have a bonding wire connected or a GFI and I'm trying to make the pool safer by adding the bonding wire.

    I don't see why this would be happening, for now I've disconnected the bonding wire so I can still run my pump.

    Anyone else come across this issue? Any thoughts?

  2. Back To Top    #2

    Re: Pump bonding wire tripping gfi

    Some GFIs don't work with Variable Speed pumps. Pentair makes a GFI designed to work with the IntelliFlo.

    There might be some sort of ground fault issue. If the new GFI still trips, you might want to get an electrician to check the system.

    http://www.poolproconnection.com/201...e-speed-pumps/

    http://www.pentairpool.com/products/...reaker-428.htm

    Also, the entire pool should be bonded. Are you saying that the pool was not originally bonded?

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    Mod Squad woodyp's Avatar
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    Re: Pump bonding wire tripping gfi

    ^^^^^^..........He knows his stuff!....^^^^^^
    16x32x52" Steel Cornelius Miramar AGP Vinyl liner 13,100 gal. Buried 2 ft.
    2 Speed Hayward Power-Flo Matrix 85 g.p.m. 22" 250lb. sand filter hard plumbed
    Pool Rover Jr., Pool Blaster Max, Diver Dave TF100 Test Kit/Speed Stir
    Margaritaville Frozen Concoction Maker, Liqour Chiller, & Drink Mixer & Party Tub----Collect 'um all!

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    Re: Pump bonding wire tripping gfi

    subpanel.jpg
    Quote Originally Posted by JamesW View Post
    Some GFIs don't work with Variable Speed pumps. Pentair makes a GFI designed to work with the IntelliFlo.

    There might be some sort of ground fault issue. If the new GFI still trips, you might want to get an electrician to check the system.

    http://www.poolproconnection.com/201...e-speed-pumps/

    http://www.pentairpool.com/products/...reaker-428.htm
    Thanks James,
    The Pentair 2 pole GFI is actually the one I purchased. I wouldn't think the bonding wire would cause the GFI tripping
    The only thing I need to check when I get home in the am is that I might have connected the neutral load from the GFI(the center connector on GFI that says load neutral) to the ground connector inside the VS terminal box instead of the VS ground to the grounding bus inside the subpanel. This might cause it I guess.

  5. Back To Top    #5

    Re: Pump bonding wire tripping gfi

    Double check that the wiring is correct. If it is and the GFI still trips, it would probably be best to get an electrician. Ground faults can be difficult to diagnose. It also sounds like the bonding should be checked to make sure that it is done correctly.

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    Re: Pump bonding wire tripping gfi

    Thanks James, I will check it in the morning. There is no bonding grid as it is an older pool but I thinking bonding to the copper pipes is better than nothing at all
    Hopefully I saved the gfi instruction, I can't remember if the inteliflo only has 2 lines and a ground then where was I suppose to connect the GFI's load neutral to? I should have hired an electrician

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    TFP Guide

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    Re: Pump bonding wire tripping gfi

    wingman, check your PM's (notifications)
    Unknown make 18' above ground (bought used in 1999) Sparco sand filter. Hayward 100,000 BTu heater. 2 speed pump

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