Roadster still running beautifully after 8 years went in for annual service last week. Took her home after a few days (why did it take 3 days?) and on plugging in I she wouldn't charge just giving me a message to "Connect Charge Cable". Back to Tesla the next morning as range was getting low. 4 days later Tesla writes to me “..the power cable in the PEM was shorted to ground during re-installation of PEM on the last service visit". We loosened the power cable and rotated connection. We retorqued everything and tested the charging cable and the vehicle now is charging properly.” Range was low so they charged the car overnight (I guess now they used my 110v cable seeing as how it was tossed in the trunk), my wife picked up the car today and took her home. However, Roadster still won't charge properly as we now get the error code 935 "Line Voltage Lost Sync" which is normally an indicator of bad power or a tripped breaker; sooo, have now tried 4 different chargers with the same result each time. Roadster will trickle charge on the original 110v cable (despite the 935 message) but that's all. Clearly it's not a charger issue and car will go back to Tesla for the 3rd time tomorrow. BTW, Tesla service wants to check my charger cable just in case ....I asked them which one, the Tesla HPWC, the Gen 2 Tesla Mobile Connector, my Clipper Creek HCS-60 or the Roadster 110v yellow cable? /rant Any thoughts/comments on the likely after-effects from that main power short on the PEM would be welcome.