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Thread: Intelliflo VS not working

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    Join Date
    Jul 2008
    Dallas, Tx

    Intelliflo VS not working

    After some electrical issues in the neighborhood I found my Intellifo VS pump off. I have confirmed power to the subpanel, heater, and lights, but can get no response of any type out of the pump.

    I'm not sure what was going on with the power supply, but it resulted in flickering lights and tripping GFIs throughout the neighborhood. Seems to be resolved now.

    My pump was running at the time, do these pumps have some type of fail safe that would shut them down in the event of a power surge? Any tricks to restarting? Pressing the start or reset button has no effect. Pump is 3 years old.

    Thanks in advance!
    20k white plaster with blue quartz, IntelliFlo VS, Quad DE 100
    1000 gal spa with natural stone waterfall
    Beach entry with 2 bubblers. Pool built Spring 2013

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    CJadamec's Avatar
    Join Date
    Apr 2016
    Quaker Hill, CT

    Re: Intelliflo VS not working

    A power surge like that from the utility could have fried the circuit in the VFD on the pump. The motor is probably fine but you may need a new drive section. There are a number of threads strongly recommending the addition of a surge protector, like the Square D HEPD 80, to protect the drive electronics from events like this.
    15x30 AG, Pentair Superflo VS, 19" sand filter, TF-100 test kit
    Aqua Comfort ACT750 heat pump / 6x20 ground mount solar panel / DIY automation

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    chiefwej's Avatar
    Join Date
    Jun 2011

    Re: Intelliflo VS not working

    Sorry to here about your problem.

    The drive controller is sensitive to surges. It's basically a computer circuit connected to a powerful DC motor. So even minor "blips" in the power while it's running can reek havoc. For that reason, I have two "whole house" type surge protectors. One on my main service panel and one on the pool sub panel.

    Have you tried shutting down the circuit, then doing a reset on the pump. It is after all a computer. Mine once failed to reset with the reset button, but I found that disconnecting power for a bit then restoring it first did the trick.
    Tucson, AZ
    16x36 rectangular (19k) Pebble Tec play pool/spa, Pentair Intelliflo VS 011018, Super II 2hp (spa), Aqua Rite T-15 SWG, Pro Grid 60 DE, Hayward H400 & Heliocol Solar heating, A&A infloor system, fill water w/high CH and TA, 50 ppm borates,TF-100 test kit

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