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  1. #1
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    Daikin EWAQ480F Chiller



    Can any one help me with this chiller, its the first time ive worked on a daikin chiller.

    i had the call for the chiller not working at all, when i arrived the controller had 2 alarms which was +C2 OFFMTRPROTECT and +C1 OFFMTRPROTECT

    After further investigation i found that one of the 80amp fuses had blown on circuit 1, i removed the fuse and took the compressor offline so circuit 1 is currently running on 2 compressors.

    After about 1/2hour of running i get the +C2 OFFMTRPROTECT alarm again and it shuts circuit 2 down, i have looked online and im not able to find what the fault code is or means.

    The controller is also asking for a password which we dont have (just taken site over) without calling daikin applied out to investigate is there anyone on here that has experience or knowledge of these chillers?



  2. #2
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    Re: Daikin EWAQ480F Chiller

    I would try 1234 for the password
    As for the alarm don't know can't see it in the iom possibly compressor or fan trip.
    Gibbo

  3. #3
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    Re: Daikin EWAQ480F Chiller

    Hi,

    This document has done the rounds, I’m thinking it was originally compiled by one of the members here

    http://www.frigoristes.fr/getfile.ph...20de%20GEG.pdf
    Mankind does not know why Coffee make us poop..
    https://m.youtube.com/watch?v=U8Fqyyv16SM

  4. #4
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    Re: Daikin EWAQ480F Chiller

    Try 5321 if it's microtec 3 Siemens controller, I think the motor protection module has shut it down, the compressor motor might be getting hot or some other safety is linked with the protection module

  5. #5
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    Re: Daikin EWAQ480F Chiller

    6363: Service password

  6. #6
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    Re: Daikin EWAQ480F Chiller

    Thanks for the advice, sadly i didnt get chance to go back to site to try this out but they have got the issue sorted.

    It was a faulty thermistor on circuit 2 compressor, thanks again for everyones help and advice.

    Rik
    Last edited by TrickyRikki; 02-11-2018 at 11:46 PM.

  7. #7
    Brian_UK's Avatar
    Brian_UK is online now Moderator I am starting to push the Mods: of RE Site Moderator : and general nice guy
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    Re: Daikin EWAQ480F Chiller

    Thanks for the update.
    Brian - Newton Abbot, Devon, UK
    Retired March 2015
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