Hi:Regarding your problem with your refrigerator: many years ago, (more than 20), I ran an appliance repair shop and had some positive results with absorption refrigerator repair. If a unit such as yours came in , I would remove it from the RV , after safely disconnecting the gas and electricity,and simply turn it upside-down, leave it inverted for about a half hour, turn it rightside up, leave it for about a half hour and repeat. This process allowed the ammonia and other components in the sealed system to re-mix as well as clearing any minor restrictions.
I can't remember how I learned this "trick" but I remember having a reasonable success rate. Once you have inverted it two or three times, reinstall it and test the operation. (making sure it is level). It didn't work every time but it won't cost you anything to try it.
Hope this helps.
