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umc issue

  1. D

    Error Code UMC-a001 Inadequate outlet grounding

    HELP! Hoping I could some insight on this… so I have a Zencar Level 2 EV charger (NEMA14-50) that I had before and I’m using on my MY with J1772 adapter. Its plugged into a 14-50 to 10-30 pigtail adapter so that I can plug into my dryer outlet. It only gives me 16A 13m/hr but does the trick. I...
  2. Darblish

    Mobile connector maximum amperage fluctuating

    I’ve had my Model Y for about 2 days now, and am charging at home with a NEMA 14-50 outlet and the “corded mobile connector” (the 40-amp version). I picked the corded model because if I come home at my latest usual time and plug in with 20%, 9.6kW will get me to 80% before my earliest usual...
  3. B

    Charging woes

    Off to deepest Wales next week so thought I would test my mobile charging cable - well, has done nothing but blow my house RCD fuses at the box - thought it was possibly the extension lead so plugged direct to house socket - same result! then tried the granny cable for my wife's i3 - success...
  4. Tezzie

    Ground Fault Cable Error Message

    Everything worked fine the first time I charged my 2018 Model S 100D. Tonight, when I plugged the mobile connector into the charger port--for ONLY the second time--the lighted ring started quickly flashing green, then went solid red. The dashboard error message was something like "ground fault...