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Thread: Intellichem FAIL=04H

  1. Back To Top    #1

    Join Date
    Jan 2015
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    Flotida
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    Intellichem FAIL=04H

    HI,
    I have an Intellichem managing pH and ORP. There is an acid pump on the left and an Intellichlor connected. Firmware v 1.06. When the system starts-up in the morning I get a failure in Auto Calibration. Screen looks like this:
    AUTO CALIBRATION
    pH: 6.20 4.34
    ORP: 717 401
    FAIL=04H Press>

    After pressing > the next screen looks like:
    High PH X1:0349
    Low PH X2:0534
    High ORP X1:0717
    Low ORP X2:0401

    If I restart the system, it starts and operates normally. But for the last 5 mornings, every time it first starts, I get this error.
    Can anyone tell me what fail code 04H is and what might be causing it?

    Any help is appreciated.

  2. Back To Top    #2
    Mod Squad jblizzle's Avatar
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    Re: Intellichem FAIL=04H

    Welcome to TFP!!!

    How old is your system?
    A quick look at the Owners Manual indicates that 04H might be the "ORP too low error"

    TFP generally feels that the use of ORP sensors is not a good approach for outdoor residential pools due to the large fluctuations in the ORP value that can occur, especially when the stabilizer level (CYA) is maintained at the 70-80ppm we recommend for SWG pool. You might be much better off running your SWG in % output mode instead of relying on the ORP sensor.
    Jason, TFP Moderator
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  3. Back To Top    #3

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    Re: Intellichem FAIL=04H

    Thanks Jason. The system is only a month old and had been running with no issues, until the last week. Just curious, I looked through the Installation and User's Guide for the IntelliChem and couldn't find the 04H error code. Where did you find it?
    Thanks!

  4. Back To Top    #4
    Mod Squad jblizzle's Avatar
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    Re: Intellichem FAIL=04H

    It was in the troubleshooting area of the manual on page 50.

    Oddly, the Pentair site links to this which does not have the numbers: http://www.pentairpool.com/pdfs/IntelliChemOM.pdf
    But this version does have the numbers (found though Google search): http://www.pentairpool.com/pdfs/intellichemOM.pdf (lack of capital letters)
    Jason, TFP Moderator
    18k IG pebblesheen pool, Hayward ProLogic P4 w/ T-15 SWG, Pentair 1HP 2-speed Superflo, Hayward 6020 DE filter
    500 sqft Heliocol solar panels, ThePoolCleaner, TF-100 test kit w/ SpeedStir
    Pool School + Test Kit + PoolMath = A TROUBLE FREE POOL
    If you found TFP helpful and we saved you money ... Become a TFP Supporter!

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