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Unable to charge after MCU2 upgrade

Discussion in 'Model X: Battery & Charging' started by ethange, Feb 8, 2021.

  1. ethange

    ethange Member

    Joined:
    May 24, 2020
    Messages:
    46
    Location:
    Ca
    928CA0AF-F2F8-40A9-8CB3-C66E1AF8C7F8.jpeg Just upgraded to MCU2 on last Friday. Back to home on the same day, the Gen 3 wall charger won’t charge. But the supercharger works. Any idea?
     
  2. Silicon Desert

    Silicon Desert Active Member

    Joined:
    Oct 1, 2018
    Messages:
    3,028
    Location:
    Sparks Nevada / GF 1
    Hmmmm, I didn't think those things were related. Out of curiosity, is the led indicator on the wall charger always blue? And I guess you know that the red indicator on the charge port indicates a charge fault. Check the message on the touch screen.
     
  3. Akikiki

    Akikiki A'-Lo-HA ! y'all

    Joined:
    Nov 26, 2012
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    6,275
    Location:
    Kaneohe, HI
    #3 Akikiki, Feb 14, 2021
    Last edited: Feb 14, 2021
    Take your UMC and use your 120V adapter and test charging from home power and on 120V. Slow but helps understand. This is something that your SC would want you to do. Don't forget to scale your amp back on the screen to insure the car is not trying to pull more than allowed. Would also be a good idea to see if lowering the charge rate on the screen allows the car to begin charging with your WC.
     
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