Left it on 240v a couple of days ago now 240 symbol flashes the same as it does if it's not on hookup. Lead plugged in other 240v stuff (water heater ) working . I unplugged the main lead to the fridge there are 5 wires 3 thin (2 of them read 13v so presumably 12v supply to fridge circuit board 2 thick ones which I think are 240v nothing. Fridge is a Thetford MH Chausson flash 10 any ideas!!