Hi K3WE,
Norcold added an auto shut off. Unfortunately it requires a tech to reset it, and it is set so high in temperature the anti corrosion material fails. I do not know if Dometic has such a system.
As I can not afford the 3 grand it would cost me in Canada for another absorption fridge, I'll do the ARP.
To some extent it reminds me of the whole "surge protecting" issue. Anyone who investigates it carefully, realizes that brown outs may be far more of an issue, damage wise. Bad neutral is a distant second and is much more of an issue for 50 amp rv's. Yet there are threads every month about surge.