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  1. #1
    Join Date
    Jan 2015
    Location
    United Kingdom
    Age
    63
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    prohibit code 38



    found reoccuring error codes j4 and j7 on daikin outdoor master unit model REMHQ12P8Y1B,after
    unit kept cutting out i decided to prohibit the master unit using code 38 so the slave could still run.
    instructions were as follows 1 hold mode button bs1for 5seconds or more till lit.
    2 press set button 38 times.
    3 press return button once.
    4 press set button once.
    5 pressreturn button twice.
    6.press mode button once.
    tried instructions but it didnt program out the master unit.can anybody confirm instructions and
    code 38 are correct for this unit.
    i question point 6 as i thought you would exit if you pressed the mode button and return to normal operation.



  2. #2
    Join Date
    Apr 2008
    Location
    Southampton, England
    Age
    49
    Posts
    1,045
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    35

    Re: prohibit code 38

    I've done just that on a VRV2 for the slave and it worked no problem. In that case it was 39 not 38 and you get lights 2,5,6 and 7 lit, from there
    press return and get h6p flashing
    press set and get h7p flashing
    return twice
    mode once to come out.

    To get it back working again you have to repeat this operation.

    Are you sure you have the master unit?
    3 and 8 lit when out of the setting modes for master
    8 flashing for slave 1
    All off for slave 2

    Otherwise have you set it then done it again and set it back
    Settings have to be made at the master unit.
    Manual should be easy enough to find in interweb but must admit it is hard work to get the jist of.

    Cheers,
    Andy.

    Well, at least it is for a VRV2, not sure what vintage you have there
    Health and safety first..........unless I'm in a hurry.

  3. #3
    Join Date
    Oct 2007
    Location
    manchester
    Age
    50
    Posts
    5,707
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    45

    Re: prohibit code 38

    get the daikin app

  4. #4
    Join Date
    Jan 2015
    Location
    United Kingdom
    Age
    63
    Posts
    36
    Rep Power
    0

    Re: prohibit code 38

    thanks andy,i have a vrv3,and assume i have the master as there are 2x sets off comms cables on this unit and only1x set on the other.i may have put the code in wrong and will try again when i return to site to fit the sensors.unfortunately i only work on vrvs about every 6-8months so often forget what i have learned.

  5. #5
    Join Date
    Jan 2015
    Location
    United Kingdom
    Age
    63
    Posts
    36
    Rep Power
    0

    Re: prohibit code 38

    yes i will when my tight firm gives me a decent phone

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