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Had my (defective) UMC replaced -- excellent service

Discussion in 'Model S: Battery & Charging' started by thedaysbetween, Apr 18, 2014.

  1. thedaysbetween

    Jan 11, 2014
    Maryland, USA
    Just a brief notice on excellent Tesla service. My MS85 would not charge the other night and displayed "Contact Tesla Service" and "Check Power Source and Charge Cable" on the display. I contacted the Rockville, MD SC and Erick pulled my log and said bring the UMC cable with you. They quickly determined that the UMC had gone bad, installed the titanium shield, and off I went. Since then, no problems charging. What excellent service!
  2. scaesare

    scaesare Well-Known Member

    Mar 14, 2013
    Erick and the crew @ Rockville are good folks.

    This does beg a question, however... I believe the UMC has only a 1 yr warranty(?)... I rarely use my UMC as I have a HPWC at home. Given that I have a UMC almost a year old.. I wonder if I have an older design, and/or if it will be likely to develop issues?

    It seems as if I've heard of a decent number of them being replaced over time...

    I think I may exercise mine over the next few weeks...
  3. Cottonwood

    Cottonwood Roadster#433, Model S#S37

    Feb 27, 2009
    Yes, it seems to be hit or miss. I used my UMC as my primary charging source for my first year, then I put in an HPWC at my primary residence. I liked it so much, I put an HPWC in my second home. Since then, the UMC has mostly stayed in the car, but it worked great for the first year, never got hot, and had no issues what so ever; still doesn't...

    BTW, I strongly recommend the HPWC, even if hooked up for less than the 80 Amp max. Of course, I am also a big fan of dual chargers to use that HPWC power when needed and High Amp J1772's in the wild.
  4. invisik

    invisik Supporting Member

    Mar 13, 2014
    I think that's a good idea. Even if just on 120v for a little while.


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