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Thread: pool pilot dig220 /problem/ question

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    pool pilot dig220 /problem/ question

    I have a 220 ver 4.02,SC36 cell, 4200 ppm salt, voltage 12v@4.9A (typ). The cell gets coated with white salt after a few days. I replaced the cell and still have the problem. The book said the polarity needs to change every 4 hrs. I put a voltmeter on the output tabs on the control unit (the ones that go to the cell) and the voltage never changes polarity. I know that the display ON or OFF has a period that comes and goes to indicate a polarity change but the out put voltage does not change polarity. I can do a forced polarity change and the output polarity does not change.Should the meter change polarity is the 1 st question and would the problem be in the control module or the power supply unit?

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    JasonLion's Avatar
    Join Date
    May 2007
    Silver Spring, MD

    Re: pool pilot dig220 /problem/ question

    There is a relay that switches the polarity in the main unit. Those relays get stuck in one position occasionally.
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