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Thread: Jandy aqualink RS not turning off

  1. Back To Top    #1

    Join Date
    Jul 2012
    Location
    Cupertino,CA
    Posts
    45

    Jandy aqualink RS not turning off

    Hi Folks,
    Mike here.
    I have a pool/spa that is controlled by a Jandy Aqualink RS, with a PDA.
    Something malfunctioned today. The filter came-on at the scheduled time, but never turned off.
    When I realized that it was still running, I tried to turn it off myself.
    With the PDA set to "pool filter off", the pump still runs.
    When I go to the control panel and change the setting to "service" (which should turn everything off) the pump still runs.
    The only way that I can stop the pump is by turning off the main breaker.

    As I said, the PDA thinks that the pump is off. If I turn it "on" it activates the valve. If I turn it back "off" it closes the valve, but the motor still runs.

    Does this sound like a control panel issue, or is there something on the actual motor that can fail to receive a signal from the panel??

    Of course this happens during a Holiday weekend.
    Thanks in advance.

    Mike

  2. Back To Top    #2
    JasonLion's Avatar
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    May 2007
    Location
    Silver Spring, MD
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    37,879

    Re: Jandy aqualink RS not turning off

    That sounds like a stuck relay. Sometimes the power relays get stuck in one position or the other. What that happens they need to be replaced. The relays can be individually replaced. To confirm that this is the problem, switch the pump on off while standing next to the main controller. You should hear a definite click. If you don't hear the click, the relay has gotten stuck in the on position.
    19K gal, vinyl, 1/2 HP WhisperFlo pump, 200 sqft cartridge filter, AutoPilot Digital SWG, Dolphin Dynamic cleaning robot
    Creator of PoolMath and Pool Calculator. Other handy links: Support this site, TF Test Kits, Pool School

  3. Back To Top    #3

    Join Date
    Jul 2012
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    Cupertino,CA
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    45

    Re: Jandy aqualink RS not turning off

    Thanks for your input.
    I will check the relay.

    Mike

  4. Back To Top    #4

    Join Date
    Jul 2012
    Location
    Cupertino,CA
    Posts
    45

    Re: Jandy aqualink RS not turning off

    yup.
    It was the relay.
    The contacts were stuck. I gave it a good whack with the screwdriver handle and it opened right up.
    I will order a new relay to have on hand.

    Thanks again for your help
    Mike

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