The fridge is working great. Even the problem we have had for the past 3 years with the freezer defrosting once every day and melting the ice cubes seems to have been fixed. I guess the computer board was weak from the get go.
(Note to Steve and Dianne) The road into the campsite is now seal coated for the 7 km and only the entrance road to the campsite is gravel with calcium on it so there was no dust. :)