Dometic Fridge RM4320

I'd have thought that if it's just an on / off switch there'd be minimal wiring to the back of it ... probably just switching the live, so just 2 wires on the back. Pull the old switch and swap each & any wires 1 at a time.

Thanks, ED: I found that the trick was to get to the back of the fridge through the external ventilation grill opening in order to push the wiring towards the front of the fridge to avoid the spade connectors coming off the switch terminals (there were actually 4) - if they had come off there'd have been no way of being sure how to connect up the new switch in the right way and the switch was for the 230v hook up connection !