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Thread: Start Capacitor replacement question

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    Join Date
    May 2013
    Bensalem, PA

    Start Capacitor replacement question


    From doing some research in the forums, I've come to the conclusion that my Hayward Power-Flo Matrix pump needs a new start capacitor. I turned off the pump yesterday to clean out my skimmer baskets and when I attempted to restart the pump, all I got was a humming sound.

    I checked the inside of the pump to see if something was obstructing the pump and it was clear.

    My question is, would I have to actually dis-connect the pump from the filter and pool in order to replace the capacitor?

    I'm not sure I want to actually disconnect the pump at this moment, because I can't think of a way to stop the pool water from draining out all over the place once I take the pump from the platform.

    If I have to remove the pump to fix it, is there a trick or any other suggestions anyone would have to stop the water from coming out of the pool?

  2. Back To Top    #2
    Mod Squad Bama Rambler's Avatar
    Join Date
    Jun 2009
    SouthWest Alabama

    Re: Start Capacitor replacement question

    You do not have to disconnect the pump from the plumbing. You don't even have to remove the motor.

    There is either a metal can that makes a bump on the motor that the capacitor is under or it's inside the back cover. Make sure the power is off!
    Dave J. TFP Moderator
    24' x 52" Round AGP. 2hp/¼hp SPL Power-Flo 2-speed pump. 200sqft Waterway Cartridge Filter. 45MHP2(3GPD) Stenner Peristaltic Pump
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    Mod Squad jblizzle's Avatar
    Join Date
    May 2010
    Tucson, AZ

    Re: Start Capacitor replacement question

    You should not have to disconnect the pump or motor from the plumbing ... assuming you have access to the cover on the back of the motor.

    Some motors have 2 caps, one in the rear cover and one on the side ... I am not sure which is the start and which is the run cap though
    Jason, TFP Moderator
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  4. Back To Top    #4
    Smykowski's Avatar
    Join Date
    Sep 2011
    Gurnee, IL (North Suburban Chi-town)

    Re: Start Capacitor replacement question

    I don't think a Power-Flo Matrix pump has a capacitor. There's a centrifugal switch on the back side which might be dirty/loose/bad, but when I took mine apart, I never saw a capacitor.

    Can you turn the shaft by hand? Have you looked at the impeller to see if it's clogged?
    33' round, 23,000 gal AG vinyl , 1HP 2spd PowerFlo Matrix downsized with 3/4HP impeller (X2), Hayward S180T 150# sand filter (X2), Hayward H250 NG heater Pool Store year 1 - $850 for 2 months; Pool Store year 2 - $440 for 2 months, TFPC year 1 - $170 for 4 months; TFPC year 2 - $95 for 4.5 months
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