overheating

Following on from a thread where a member melted their cable due to contact resistance heating. I decided to clean both cable and charge port. I used contact cleaner with a spray tube to get into the small contacts and some small swabs to clean the charge port pins. I got a fair bit of gunge off...

I've had my GTE for 10 months now and have been charging overnight (most nights) on my exterior 3 pin socket has never been a problem. I've not got Eco7 elec, so i've got it set on instant charge and max ampage. During the late spring/summer I've not needed the car pre-heated i've been charging...