I have an OpenEVSE unit, which I purchased here 1 year ago. I’m using it nearly every day and I really like it but when I opened the case recently, I discovered that the bottom left side of the relay is getting very hot (50+°C), up to the point that it is damaging the connected wires nearby (see photo: we changed wires and replaced ferrules 1 week ago but the plastic parts are now completely molten again).
The unit is operating at 32A but it seems to get similarly hot at 24A and even 16A or lower.
Also sometimes, when starting a charge, the relay “whistles”, something which can usually be avoided by interrupting the charge for a few seconds.
Have other people experienced the same ?
Shall I consider replacing the relay ? (also any idea how to get a replacement part ?)