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Thread: Float switch random closed

  1. #1
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    Float switch random closed

    I have an automatic float switch at the bottom of my AWC storage tank. I have controlled the DOS used for AWC using that switch to report closed when the st=orage tank level is low. It has started randomly reporting closed when the tank is far from low. It will remain in that state for awhile then go back to open.

    The breakout box, which also has switch from the ATO pressure sensor and an automatic float switch for the high level of the RO storage tank and those switches act as they should. The breakout box did get splashed with a bit of water and that is when the problem started.

  2. #2
    Frequent Contributor iamchadster's Avatar
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    Can you move one of the switch wires to an unused port on the BOB? That might help rule out switch vs short in the BOB. You'll have to bring the new tile out and change any programming if you switch wire positions obviously.
    Chad

  3. #3
    Master Control Freak RussM's Avatar
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    Quote Originally Posted by hkgar View Post
    The breakout box did get splashed with a bit of water and that is when the problem started.
    Disconnect the BoB and open it up - 2 screws on the back IIRC. It’s basically just wiring; there are no electronic components inside. Inspect for water and or salt residue. If there is water, let it dry out. If was saltwater, rinse with RO and let dry thoroughly.

    While it’s fully disconnected, verify that the switch tile stays OPEN
    Please do not send me PMs with technical questions or requesting assistance - use the forums for Apex help. PM me ONLY if the matter is of a private or personal nature. Thanks.

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