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  1. #1

    Join Date
    May 2014

    Pump Controls not functioning as expected

    I am troubleshooting why a pump is not remaining off. Three pumps are set to shut off when the level in a tank hits 113'. One of these pumps continues to turn on unexpectedly. This pump also has controls based on downstream pressure and a VFD setting. However, the results graphs don't make sense given these control points. During the shown time, the tank is full, so all pumps should be off, but pump 1 continues to cycle. Any ideas?

    Also here is pump 2 and its controls which correctly shuts off:

    Last edited by RossV; April 12, 2019 at 09:18 AM. Reason: added detail

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