Hi Martha,This just happened to me. I have a home built in 1951. I have been charging Level 1 because I have to upgrade the panel and install outlet for the Level 2 EVSE that being said we were charging through the outlet fine with no issues for 4 months all of sudden the Level 1 EVSE began to fault. I did not realize but in the menu setting in Level 1 charging I had set at maximum I set it at reduced. Now I am not having this issue. So I am not sure if this information will help you.