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Thread: Air Conditioner Never Shuts Off

  1. #1
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    Aug 2013
    Location
    Spring, TX
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    Air Conditioner Never Shuts Off

    Basically I want the A/C in my fish room to run 2 hours on, 2 hours off from midnight to noon, then 3 hours on, 1 hour off from noon to midnight. Also to turn on any time the air temp of the room exceeds 79°F and run for a minimum of 30 minutes.

    Probe
    AirTmp

    Virtual Outlets
    OSC1
    OSC 000:00/120:00/120:00 Then ON
    If Time 11:59 to 23:59 Then OFF

    OSC2
    OSC 000:00/180:00/060:00 Then ON
    If Time 23:59 to 11:59 Then OFF

    EB4 physical outlet
    AC_4_2
    Fallback ON
    If Output OSC1 = ON Then ON
    If Output OSC2 = ON Then ON
    If AirTmp > 79.0 Then ON
    Min Time 000:30 Then OFF




    I can't figure out what I am doing wrong. Seems like the A/C never turns off...

    right now its 11:42. I see that OSC1 and OSC2 are both off, AC_4_2 is on and the probe is reporting air temp of the room to be 70.2°F

  2. #2
    Frequent Visitor rkpetersen's Avatar
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    Jun 2017
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    Near Seattle
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    Couple things. You need a Set OFF statement after Fallback ON to turn it off. Otherwise once it turns on it won't ever turn off again.

    Also it's best not to overlap time periods. So I might change the first to 12:00 to 23:59 and the second one to 00:00 to 11:59.

  3. #3
    New User
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    I just added Set OFF and its seems the port was turned off.



    Fallback ON
    Set OFF
    If Output OSC1 = ON Then ON
    If Output OSC2 = ON Then ON
    If AirTmp > 79.0 Then ON
    Min Time 000:30 Then OFF

  4. #4
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    Quote Originally Posted by rkpetersen View Post
    Couple things. You need a Set OFF statement after Fallback ON to turn it off. Otherwise once it turns on it won't ever turn off again.

    Also it's best not to overlap time periods. So I might change the first to 12:00 to 23:59 and the second one to 00:00 to 11:59.
    Thanks. I actually just realized I was being a dummy. Thanks for the reply and the info about timing overlap. I changed that as well.

  5. #5
    Frequent Visitor rkpetersen's Avatar
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    There you go. Check your OSC VOs to see whether you should be getting air right now. And don't forget that, the way you have it, it can't automatically come on again for at least 30 seconds.

    Edit: posted this before I saw your last reply. (And also corrected my own senior moment.)

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