I have had the evse brick get rain water inside it and almost ruin it.
Luckily I was at home, had a security Torx hand screw driver, compressed air, caught it almost as soon as it happened and was able to open up, dry off and save my evse.
I will continue to keep the brick portion of the evse inside even if it means closing the garage door on the j1772 cord. Since getting rained on once would have ruined it.
Closing the door on it dozens of times has done nothing.
If the j1772 cord gets damaged or appears to sustain damage I will cut away the damaged section and reterminate inside the brick, effectively shortening it, or buy a new cable and replace it. Either way it's not rocket surgery.
The only evse cord I close the door on is my original 2011-2012 Panasonic made granny evse that I converted to 240v. It's got a very thin j1772 cord.
A 24-32 amp or larger j1772 cable is probably too fat.
My home chademo cable is definitely too fat to have a door closed on it, about 1.25 inchs thick.
2011 white SL leaf with 2014 batt.
Chargers: Panasonic brick moded for 240v, duosida 16a 240v and a 10kw setec portable CHAdeMO