I purchased a 2019 Lance trailer with a Dometic DMR702 2 way fridge. It has a fusible link for temperature control. If your traveling on a hot day with fridge on propane, it will blow and you have n...
Turning off the cooling unit when it is overheating is a VERY good idea. Primary cause is running with the refrigerator outside the refrigerator manufacturer's level specs. So, parked out of level in a rest area for lunch, for example can overheat the unit. This also leads to cumulative damage by precipitating out the anti-rust component to the boiler fluid.
Contact ARP with your refrigerator model number for more information on their product: