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Thread: Pool Pilot Cubby - Help Troubleshoot

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    Pool Pilot Cubby - Help Troubleshoot

    I'm having difficulty getting my Pool Pilot Cubby to work.

    I got my pool clear now (green-pool-help-t56994.html); but I'm unable to get the Pool Pilot Cubby to run properly. I'm getting Quadruple "Check System" Flashes on the Control Panel after a few minutes of running. The "Troubleshooting" page for the Pool Pilot Cubby manual states the following:

    10) Quadruple “CHECK SYSTEM” Flashes (Control Panel Problem).
    A) Low Cell current - no chlorine.
    Solution: Check with a DC current tester. Replace Cell is needed.
    B) The Cell cord is disconnected from the Cell.
    Solution: Ensure that the Cell cord is firmly pressed onto the Cell.

    I do have a multimeter, but I am unsure how I go about testing and what are the proper numbers for a good working unit (I can't find any numbers in the manual).

    Please advise. Thank you.

    Cell with the in-deck canister close to the pool (supposedly, it works by convection to cycle the chlorine into the pool).


    Close up of the cell.


    Front of the control panel.


    The underside of the control panel.
    12K gal, pebble, A.O. Smith ST1152 1.5 HP pump, Hayward SwimClear Cartridge Filter C4025 425 sqft, AquaCal AutoPilot Systems Pool Pilot Cubby

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    JasonLion's Avatar
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    Re: Pool Pilot Cubby - Help Troubleshoot

    How long have you had the cell? They tend to wear out after 3 to 5 years. Also, visually inspect the cell plates and see if there are any obvious white chalky deposits on the cell plates.
    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

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    Re: Pool Pilot Cubby - Help Troubleshoot

    Quote Originally Posted by JasonLion
    How long have you had the cell? They tend to wear out after 3 to 5 years. Also, visually inspect the cell plates and see if there are any obvious white chalky deposits on the cell plates.
    I had the cell for at least 2.5 yrs (that's when I moved into the house). I don't know how old the cell is.

    I don't see any white chalky deposits (i presume you mean white thin flakes by chalky?).
    I do see tiny dots here and there when I view the plates at an angle (at a reflective angele).
    12K gal, pebble, A.O. Smith ST1152 1.5 HP pump, Hayward SwimClear Cartridge Filter C4025 425 sqft, AquaCal AutoPilot Systems Pool Pilot Cubby

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    JasonLion's Avatar
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    Re: Pool Pilot Cubby - Help Troubleshoot

    It seems likely your cell is wearing out.

    You can do the multi-meter test by measuring between the two pins on the cell cable where they attach to the main unit. You need to make sure to do the test while the cell is energized, easiest to manage when it is turned up to 100%. I don't remember the correct voltage off hand, but someone here can look it up for you.
    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

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    Re: Pool Pilot Cubby - Help Troubleshoot

    Quote Originally Posted by JasonLion
    You can do the multi-meter test by measuring between the two pins on the cell cable where they attach to the main unit. You need to make sure to do the test while the cell is energized, easiest to manage when it is turned up to 100%. I don't remember the correct voltage off hand, but someone here can look it up for you.
    I did twice with the following results:
    1) 30.88 V
    2) 31.50 V

    The posted numbers are when the green light is blinking (i.e. when I turn the knob to 100%). Once the red light starts flashing four times, the Voltage drops slowly until it stabilizes at around 0.5V.
    12K gal, pebble, A.O. Smith ST1152 1.5 HP pump, Hayward SwimClear Cartridge Filter C4025 425 sqft, AquaCal AutoPilot Systems Pool Pilot Cubby

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    JasonLion's Avatar
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    Re: Pool Pilot Cubby - Help Troubleshoot

    Normal operation is between 10 and 16 volts, so clearly the cell voltage is running too high. Three are three possibilities: cell worn out, significant calcium scaling, or drastically too little salt in the water. You have already ruled out calcium scaling with the visual inspection. If you check the salt level you will know which of the remaining two it is.
    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

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    Re: Pool Pilot Cubby - Help Troubleshoot

    Salt level was at 2500 ppm (low end of the accepted range according to the manual). I put in a little bit more salt last night. Will do the test again later today and post some more results.
    12K gal, pebble, A.O. Smith ST1152 1.5 HP pump, Hayward SwimClear Cartridge Filter C4025 425 sqft, AquaCal AutoPilot Systems Pool Pilot Cubby

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    Re: Pool Pilot Cubby - Help Troubleshoot

    About the same result with the Salt Level at 2900 ppm.
    1) 31.5
    2) 31.5

    Seems like the cell is worn out.

    I have the in-deck cell version. It doesn't seem very easy to find replacements for these and they are very costly ($400+). Any recommendations?
    Or would getting a new unit like the Digital Nano Auto Pilot with the in-line cell (manifold) be a worthwhile investment?

    Please advise. Thanks.
    12K gal, pebble, A.O. Smith ST1152 1.5 HP pump, Hayward SwimClear Cartridge Filter C4025 425 sqft, AquaCal AutoPilot Systems Pool Pilot Cubby

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    Re: Pool Pilot Cubby - Help Troubleshoot

    Will the replacement costs of the cell so expensive, I'm leaning towards upgrading my SWG unit.

    At 12k gallon pool size, which is more recommended:
    1) Pool Pilot Digital Nano ($650): rated for 22k gal (almost 2x)
    2) Pool Pilot Digital w/ SC-36 ($1100): rated for 36k gal (3x)

    Option 2 almost doubles the price of option 1, is it worth the investment to upgrade since the Nano is almost 2x my pool size?

    Thanks.
    12K gal, pebble, A.O. Smith ST1152 1.5 HP pump, Hayward SwimClear Cartridge Filter C4025 425 sqft, AquaCal AutoPilot Systems Pool Pilot Cubby

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    Mod Squad Bama Rambler's Avatar
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    Re: Pool Pilot Cubby - Help Troubleshoot

    The Nano would suit you fine. I see no reason to go bigger than that.
    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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    Re: Pool Pilot Cubby - Help Troubleshoot

    Nano should be fine. It does seem to be a worn out cell.
    Sean Assam - Sean@teamhorner.com
    National Accounts and Commercial Products Manager
    AquaCal Heat Pumps www.aquacal.com
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