Schneider sent me the new circuit board and I had a chance to change it out yesterday -- can't say enough praise about their customer service -- my EVSE unit has been out of warranty for a few years (this past October marked 5 years of reliable service, it came with an 18 month warranty) and they've basically given me a free upgrade (albeit using my own labor -- some may NOT want to DIY with this stuff).
The swap requires you to basically (after shutting off power of course) pull the EVSE cover, remove about a dozen hex key head screws along with the ribbon connector for the main push button/status lights switch, reconnect about a dozen wires and then put it all back together -- I can tell its function has been changed as well as if anyone had the 'old' one, when charging the charging segment lights will stay on showing you how long your EV has been charging; with the new board, the indicator is a bit more fancy as it will flash sequentially (kind of like those you might see on an old T-bird) until its done -- now performs flawlessly and no more faults! Did a full charge after the swap without any problems.
Perhaps my situation is unique (using a 1st gen EVSE), but if/when my e-Golf gets switched with a Tesla Model 3 in a few years it should be fine (all Tesla's come with a J1772 adapter so my Schneider will be able to charge it -- perhaps not at the 10 kW the M3 can use but at 72% or the max 7.2 kW rate that my unit can now safely charge at).
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2018 smart ED Brabus (leased)
Sapphire Blue Metallic
2017 Tesla Model 3 LR RWD; EAP; 19" sport wheels
2015 VW e-Golf LE (traded-in for Model 3)
2012 Nissan LEAF SL (traded-in at 5 yrs; 46K miles)
EVSE: 10/07/11 Schneider EVlink