Many thanks bms, just waiting on suppliers to get back to me. It still works but I expect it will stop (working) eventually.

Thanks Webtrekker,
Just tried that - displayed E2 with blanket unplugged, then worked fine with blanket back in. So maybe the control unit/thermostat?

Hi Guys,

My mug press is showing an "E2" code when I switch it on. It's happened about ten times.
When switched off and on again it clears, but I assume it's going to conk out at some point, if I don't find a fix.
It's a J-Trans machine.
Thanks for your help.