Hi Terry,
You seem to be having the same luck with your fridges as I had with Toyota's, however as much as it saddens me to have to agree with Tony, as we also have a 230l Vitrofrigo which is 9 years old and has spent its whole life in either the Kimberly or NT and as Tony says it has been "trouble free (touch wood)"!
I guess that, like me and Toyota's, you are one of those "special" people with Vitrofrigo. I feel your frustration.