TMC is an independent, primarily volunteer organization that relies on ad revenue to cover its operating costs. Please consider whitelisting TMC on your ad blocker and becoming a Supporting Member. For more info: Support TMC

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:
    657
    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:
    1,143
    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 ;(
     

Share This Page

  • About Us

    Formed in 2006, Tesla Motors Club (TMC) was the first independent online Tesla community. Today it remains the largest and most dynamic community of Tesla enthusiasts. Learn more.
  • Do you value your experience at TMC? Consider becoming a Supporting Member of Tesla Motors Club. As a thank you for your contribution, you'll get nearly no ads in the Community and Groups sections. Additional perks are available depending on the level of contribution. Please visit the Account Upgrades page for more details.


    SUPPORT TMC