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Charging Error 981

Discussion in 'Roadster: Technical' started by suxxer, Mar 27, 2011.

  1. suxxer

    suxxer ElektroVolt

    Joined:
    Dec 15, 2010
    Messages:
    294
    Location:
    Zurich, Switzerland
    Just got charging error 981 while trying to charge using the UMC with a 10A adapter (using a standard Swiss socket which are rated 230V/10A - 2.3kWh is better than nothing).

    I plugged the UMC to a socket which was on the end of my extension cord. Looks like the UMC checks if it detects a significant voltage drop when testing the power line. I guess that i have a voltage drop of around +/-20V due to the long cord (~100 ft from the socket.). So I got error #981 "Charging Problem" all the time - the Roadster only reached the blinking blue status before turning to red. Finally connecting directly to another 10A socket nearby yielded no error.

    So if you get #981 it's most probably due to bad wirings...
     
  2. Mitrovic

    Mitrovic Member

    Joined:
    Dec 30, 2010
    Messages:
    592
    Location:
    Bern, Switzerland
    I was never able to charge the roadster using an extension cord. Even when trying with 10A only.
     
  3. daghb

    daghb Member

    Joined:
    Aug 17, 2009
    Messages:
    34
    No problem here. Keep in mind you must stick to quality cords with proper diameter only. Too much resistance or unstraightened cords (loops) may cause melted cords.
     
  4. Eberhard

    Eberhard #421 Model S #S32

    Joined:
    Oct 17, 2010
    Messages:
    1,141
    Location:
    Germany
    in my underground garage, i have a 50m (150ft) with 2.5mm extension cord. most i charge with 13A. I often get the error "problem with extension cord detected' but goes on with charging. i am using the standard-cabel with max. 16A.
     
  5. Talkredius

    Talkredius Member

    Joined:
    Jul 29, 2010
    Messages:
    230
    Location:
    Hueckelhoven, Germany
    if the voltage drops below 210 V you get the error message, but the UMC will continue charging. ( my own experience) below 200 V the UMC stops charging, will try again after 30 s and will stop finally after 5 retries. ( the tec , who did my 20.000 km maintenaince told me so )

    In addition to daghb : If you use schuko sockets, you may also get contact problems with worn out schuko sockets which results in a higher resistance.
     
  6. suxxer

    suxxer ElektroVolt

    Joined:
    Dec 15, 2010
    Messages:
    294
    Location:
    Zurich, Switzerland
    hmm..ok. My UMC is retrying hard to start the charge....voltage must be below 200 V then ;(
     

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