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Thread: ATK switching its self to off, also overfilling

  1. #1
    Regular Vistor
    Join Date
    Apr 2016
    Location
    Georgia
    Posts
    32

    ATK switching its self to off, also overfilling

    My ATK has been switching its self from “Auto” to “off” so that I manually have to turn it back to auto to make it fill. Then it keeps filling even after both sensors are closed (they are clean) and the only thing that kept it from overflowing was the float valve.


    Used to work fine. I am not sure what happened.
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  2. #2
    Frequent Visitor rkpetersen's Avatar
    Join Date
    Jun 2017
    Location
    Near Seattle
    Posts
    940
    The ATK is turning itself off because the When On statement generates an error code when the water runs continuously for more than 2 minutes. You have to turn the tile back to ON briefly and then to AUTO to reset it (make sure it doesn't stay on ON, or it will keep filling.) To troubleshoot this, first, make sure that there are no mechanical problems with the pump, obstructions in the water line, or conditions predisposing to developing a siphon. Observe water flow and control by manually turning the system on and off from the tile. Also make sure that your low and high optical sensors are detecting the water level correctly. If the system is mechanically ok, it's possible that, with the coming of summer, your evaporation has increased, resulting in error generation now when the system was previously working fine. If this is the case, usual ways to solve this are to either decrease the Min Time statement to say 30 minutes to allow the ATK to pump smaller amounts more frequently, or increase the When On time to perhaps 3 minutes to let it pump for longer at each activation, and see if that fixes the situation.

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