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Thread: What does the term "interlock" mean in reference to pools?

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    What does the term "interlock" mean in reference to pools?

    I have a salt water pool that is controlled by an Aqualogic control system. I got the " no cell power" message on my panel and did every thing I could to correct it. I followed all of the instructions on the no cell power website and ended up just getting a new board. Once the pool guy installed my new board, some of my pool settings changed and I have had to go back correct things. I have everything back to normal now except when I try to turn on the lights inside the pool, i get a message that says " interlock prevents turn on." Can someone tell me what I need to do to correct this.

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    BoDarville's Avatar
    Join Date
    Jun 2012
    DFW, Texas

    Re: What does the term "interlock" mean in reference to pool

    Welcome to TFP

    Interlock in this context refers to a setting that overrides a default setting or a setting that requires one or more conditions to be satisfied before a function operates. In most cases, this is a configurable setting. If so, there should be instructions in your operating manual to deactivate the interlock.
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    JasonLion's Avatar
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    May 2007
    Silver Spring, MD

    Re: What does the term "interlock" mean in reference to pool

    Sometimes that message comes up when you try to activate a pool feature while in spa mode, or a spa feature while in pool mode.
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    mas985's Avatar
    Join Date
    May 2007
    Pleasanton, CA

    Re: What does the term "interlock" mean in reference to pool

    Interlock can also occur at pump start up. This prevents valves from turning on that might interfere with priming (e.g. cleaner or solar valve) but it should go away in a few minutes.

    Which controller do you have and which valve are you trying to turn on?
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