Minor panic set in when I thought the 'fridge motor had packed up! I checked the fuse box but nothing was amiss and the isotherm control panel was lit up as normal so it didn't occur to me that there was another place to look! Needless to say Ray came to my rescue (James was in London!) and he located the additional fuse box hidden in the battery control locker. Phew .... we have the fridge again and I have been further educated.