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  1. #1
    Join Date
    Nov 2011
    Location
    Detroit metro area
    Posts
    3
    Post Likes

    Daiken vrv error u1-05

    I have a customer with numerous vrv's.
    They had scheduled power shut down and another building was added to the grid down the street.
    Of the 4 condensing unit groups 3 have this error code and 1 is running properly.
    Reversed the phase on one 3 condenser set and now has u1-07 fault.
    Any help would greatly be appreciated this hall has a retiree meeting in the morning and need to get the heat going. Thanks

    Sent from my SM-N950U using Tapatalk

  2. #2
    Join Date
    Apr 2005
    Location
    Australia : Queensland
    Posts
    1,678
    Post Likes
    Try this app.

    States 1st slave & 2nd Slave faults.

    Daikin Service by Daikin Airconditioning UK Ltd
    https://itunes.apple.com/au/app/daik...571282882?mt=8
    The primary function of the design engineer is to make things difficult for the fabricator and impossible for the serviceman.

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