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Thread: Request for wiring help for older Pentair Whisperflo pump WFDS-8

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    Request for wiring help for older Pentair Whisperflo pump WFDS-8

    Hello,

    I would really appreciate some help with wiring my Pentair pump. It's a Whisperflo 2 speed 230 v 2 hp square flange pump. I got the motor fixed. The technician didn't remember what wires I had but thought there were 3 wires, 1 white, 1 black, and 1 red - one for each terminal. However, there are actually 4 wires: 1 red, 1 green, 2 blue. The manuals that I found online show 2 terminals, L1 and L2 and, above them, a ground screw. I think this is an older pump, and the online manuals must refer to a newer model.

    I see three terminals, but I don't see a ground screw. I have uploaded a photo of the wires and terminals and another of the wiring diagram. It doesn't show the ground wire. I think I should put the red wire on the top terminal and the 2 blue wires on the middle and bottom 2 terminals, but I don't know where to put the green wire.

    I would really appreciate some help soon. My pool is filling up with algae.

    Thank you.
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    Mod Squad jblizzle's Avatar
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    Re: Request for wiring help for older Pentair Whisperflo pump WFDS-8

    Welcome to TFP!!1

    You need to be 100% sure that the common line is the red wire. I think you can damage the motor if your put power to both the low and high speed terminals at the same time.

    I think you are missing the green ground screw from the hole just to the upper right of the terminals.
    Jason, TFP Moderator
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    Mod Squad pooldv's Avatar
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    Re: Request for wiring help for older Pentair Whisperflo pump WFDS-8

    Add bleach to your pool to chlorinate it and brush to mix it.
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    n240sxguy's Avatar
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    Request for wiring help for older Pentair Whisperflo pump WFDS-8

    Quote Originally Posted by jblizzle View Post
    Welcome to TFP!!1

    You need to be 100% sure that the common line is the red wire. I think you can damage the motor if your put power to both the low and high speed terminals at the same time.

    I think you are missing the green ground screw from the hole just to the upper right of the terminals.
    Ditto on all counts. Looks like a green ground screw is missing above the terminals. If the red is the common, then it goes on the top terminal. The blue wires go on the other two. If the high and low don't work how they should in relation to the switch position, swap the two blue wires. Best bet would be to check voltage on the wires with a meter before hooking anything up.


    30K gallon IG vinyl. 1.5HP 2-speed Waterway Mustang pump. 600 lb sand filter. Polaris 280. Circupool SI-60+. TF-100

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    Re: Request for wiring help for older Pentair Whisperflo pump WFDS-8

    Thanks, All. Looking carefully at photos of pump wires on the web, it did look like the green ground screw was missing, as Jason pointed out. I had a few in my collections, so I put one on. I then opened the timer controller cover to look at the wires. I saw that the red was for the timer and the blues were hooked up to the load screws for the pump - high and low speeds. I tugged the blues and found which went to high and which went to low. I put it all back together, and it's working now.

    I also scooped out leaves and debris and brushed the sides and shallow-end floor of the pool. I added yet more chlorine (plus some acid since the pH was high). Hopefully, with a couple days of filtration, the pool will clear up and turn blue. If not, I'll have to buy some shock.

    Thanks again for your help.

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    Mod Squad jblizzle's Avatar
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    Re: Request for wiring help for older Pentair Whisperflo pump WFDS-8

    Nice job! Glad we could help.
    Jason, TFP Moderator
    18k IG pebblesheen pool, Hayward ProLogic P4 w/ T-15 SWG, Pentair 1HP 2-speed Superflo, Hayward 6020 DE filter
    500 sqft Heliocol solar panels, ThePoolCleaner, TF-100 test kit w/ SpeedStir
    Pool School + Test Kit + PoolMath = A TROUBLE FREE POOL
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