I purchased my current EVSE in Aug 2011. It is just over a year old and starting this past week when I disconnect my EVSE requires a reset in order to charge. I have word into the company but since it is out of warranty I am afraid it will cost a bit which will require me to send it in to be fixed leaving me with my 110 EVSE to take over the task of charging until it gets sent back. Bummer. It is a sealed unit and is water tight. It resides in my car port and is not abused. It gets dirty on the outside.