Results 1 to 3 of 3
  1. #1
    Join Date
    Mar 2015
    Location
    United Kingdom
    Age
    34
    Posts
    12
    Rep Power
    0

    Fujitsu air conditioner Inverter to PCB Comms Fail



    Hi all ,


    I hope this is right place to post ive got an error on a fujitsu unit that i have come to service

    Inverter to PCB Comms Fail, has any one else ever come across this problem and if so if you can point me in right direction what might be wrong .

    I'm assuming this is obviously the out door unit problem but as fujitsu tech help is closed for me at the min i could do with a bit of help .

    Many thanks in advance .



  2. #2
    Join Date
    Apr 2008
    Location
    Southampton, England
    Age
    43
    Posts
    923
    Rep Power
    29

    Re: Fujitsu air conditioner Inverter to PCB Comms Fail

    Guessing you have a VRF, if not then this lot might be a bit off the mark.
    Have emailed you a couple of bits, too big to insert in this post but they relate to a VII system.

    Basically reset power and see if it works, check connections between boards.
    The main PCB has a lot of checking info and to be honest I haven't read it all through but I suspect if you follow the wiring diagram on the unit you'll be taken through checking the power supplies are all there.

    Cheers,
    Andy.
    Health and safety first..........unless I'm in a hurry.

  3. #3
    Join Date
    Mar 2015
    Location
    United Kingdom
    Age
    34
    Posts
    12
    Rep Power
    0

    Re: Fujitsu air conditioner Inverter to PCB Comms Fail

    Quote Originally Posted by Tayters View Post
    Guessing you have a VRF, if not then this lot might be a bit off the mark.
    Have emailed you a couple of bits, too big to insert in this post but they relate to a VII system.

    Basically reset power and see if it works, check connections between boards.
    The main PCB has a lot of checking info and to be honest I haven't read it all through but I suspect if you follow the wiring diagram on the unit you'll be taken through checking the power supplies are all there.

    Cheers,
    Andy.
    Hi andy ,

    Thanks very much for the information , the system was 2 single splits wired off the same controll .
    A good old alt ctrl delete seems to have sorted the problem for now.
    Hopefully it doesnt happen again

    Thanks for the information tho ill keep that in hand for any vrf i do many thanks .

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •