I replaced the logic board on a unit with an OpenEVSE board and LED unit. At the time I had to use a 12V relay to trigger the 240VAC unit. Now they come stock with a high voltage driver. Either way it worked fine. The GFCI coli works OK but the test needs to be disabled.
I kept the old water damaged board for parts but it is not really repairable.
2012 Cayenne Red SL traded for:
2013 Pearl White SL Premium
Traded for a Cirrus White 2014 Mercedes B (totaled)
2016 Urano Gray eGolf SEL w/ drive assist
Loved the VW but it sat too low for my old body
Back to a Cirrus White 2017 B250e