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Thread: OS-1 getting stuck open

  1. #1
    Regular Vistor
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    OS-1 getting stuck open

    I've been working with support on this but we're not really getting anywhere, so I thought I'd ask here.


    Issue:
    OS-1 gets stuck in an open state which keeps my ATO outlet on, adding too much fresh water to my sump/system


    Details:
    This has been working fine for months (FMM with 1 OS-1 and 1 leak detection sensor connected). I recently added two flow sensors though, and that's when this issue started happening.


    Troublshooting:
    -Cleaned OS-1 in vinegar/water
    -Reseated plug for OS-1 in FMM
    -Disconnected FMM from Apex and reconnected with OS-1 disconnected. After verifying Flow sensors are working properly, connected OS-1 and it worked properly for about 4 cycles of on/off for the ATO pump, then it got stuck again
    -Removed flow sensors from the FMM and "reset it" (by disconnecting and reconnecting it) and the OS-1 seems to work properly
    -Borrowed another FMM from a friend and had the OS-1 and leak detection module connected to it with the flow sensors connected to the other FMM. OS-1 seems to function properly
    -Worked with support and sent them diagnostic reports. They said the FMM is communicating but provided no further ideas.


    Last night, I factory reset the Apex itself (initialize all) and rebuilt all the configurations. It seemed to work ok last night, and all day today, but when I got home from work today, it got stuck "open" again. Luckily I was home and could manually shut off the ATO pump.


    It's really looking like I need to have 2 FMM's if I want this to work properly, but that can't be right.....can it?


    Any thoughts/ideas on how I can fix this would be greatly appreciated!


    Thanks!

  2. #2
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    Have you tried manual set the fmm port to optical sensor instead of auto detect?


    Sent from my iPhone using Tapatalk Pro

  3. #3
    Frequent Visitor rkpetersen's Avatar
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    Quote Originally Posted by scuzy View Post
    Have you tried manual set the fmm port to optical sensor instead of auto detect?
    This is a good tip. For some reason I had never checked out the 'Configure' section of the FMM module page. Very occasionally, my RODI reservoir low level optical sensor will appear as a flow meter in Fusion (and then revert back when I refresh the page). I bet that turning off auto-detect will stop this behavior.

  4. #4
    Regular Vistor
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    Quote Originally Posted by scuzy View Post
    Have you tried manual set the fmm port to optical sensor instead of auto detect?


    Sent from my iPhone using Tapatalk Pro
    Yep, I manually set all 4 ports.

    After working with support some more, it seems it's just going to be an intermittent issue unless I put the OS-1 on it's own FMM (that's the only time I never had issues). So I've added a "when" variable to the outlet to shut it down if it runs too long and an alarm to text me if it triggers the "when" variable.

    Hopefully this works.

  5. #5
    Regular Vistor
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    Well, the code to shut it off if it gets stuck and send me a text message works.

    Now just need to try and figure out why in the world it keeps doing this. Just disconnecting the FMM and OS-1 and then reconnecting them "fixes" the issue....for about a day.

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