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UMC connector 3 flashes of red

Discussion in 'Model S: Battery & Charging' started by kktr, Jun 8, 2017.

  1. kktr

    kktr New Member

    Joined:
    Jun 8, 2017
    Messages:
    3
    Location:
    Europe
    Hello.

    This is the UMC connector (European version 230V adapter). This is a brand new cable that came with the car.

    After plugging it to a power outlet it flashes red 3 times then there's a brief pause.

    There's an adapter that goes to a 230V socket. It seems this is not present in the american version.

    This adapter seems quite loose. There's a noticable gap. I am not sure if this is intended or not. Would appreciate input from people that have a similar connector.

    I have tried several different grounded power outlets but the result is the same.

    I have tried holding the 'reset' button on the UMC and then plugging it to the power source. It stays green for about 3 seconds but then goes back to flashing red 3 times.

    I have tried cleaning the connectorsout of any possible dust by blowing air into them.

    As a result plugging the UMC to the car causes a 'Charge cable fault' notification on the dashboard and a red ring of light around car's socket.

    I am out of ideas and since I have no other cables at the moment the car remains unchargable. What can be the possible causes? Anything I can try to fix it?

    Thanks.
     
  2. Lloyd

    Lloyd Well-Known Member

    Joined:
    Jan 12, 2011
    Messages:
    5,324
    Location:
    San Luis Obispo, CA
    Try posting a picture and see if the members can help.
     
  3. PatrickCH4313

    PatrickCH4313 Member

    Joined:
    Mar 6, 2016
    Messages:
    123
    Location:
    Switzerland
    Found in the Mobile Connector Owner Manual (page 7)

    Red Light - 3 flashes = Contactor failed.
     

    Attached Files:

  4. kktr

    kktr New Member

    Joined:
    Jun 8, 2017
    Messages:
    3
    Location:
    Europe
    Hi. So I found the solution.

    I disassembled one wall socket in my home and reversed the polarities. (Not sure if this is the right technical term). Basically flipped the wires that are in the socket. UMC is now green.
     
    • Informative x 1
  5. kktr

    kktr New Member

    Joined:
    Jun 8, 2017
    Messages:
    3
    Location:
    Europe
    To clarify, by flipping wires I mean switching their places (Wire L went to R's place. wire R went to L's place. G stands for ground).

    socket:
    ___________
    [................... |
    |....(L)...(R)...|
    |...................|
    |____(G)___|
     
  6. Rocky_H

    Rocky_H Active Member

    Joined:
    Feb 19, 2015
    Messages:
    1,420
    Location:
    Boise, ID
    I think I have heard of this having to be done a few times from some places in Europe. I think the two may be a hot and a neutral. The Tesla charge cable seems to care which side the neutral is on. But when installing those outlets, frequently builders or electricians just put those two wires in either way, because it's the same voltage between them, and basically no other appliance will be able to tell any difference.
     
  7. mrElbe

    mrElbe Active Member

    Joined:
    Aug 17, 2014
    Messages:
    1,197
    Location:
    Stouffville, ON Canada
    I found the same problem with bad / reverse wired outlets in Germany and France.
     
    • Informative x 1

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