Sorry to respond so late but, was your TT "off level" when you were getting it ready to go for the weekend? The fridge, when on, can only sustain a tilt of less than about 6 degrees. If it is left running in the "off level" position too long the ammonia coolant in the coils not flow properly and will clog. This will then trip a thermal switch cutting off ALL POWER to the fridge. The switch is behind the metal heat shield in the rear of the fridge and rivited to the flu pipe for the propane flame. the switch is "resettable" but should be replaced.
I know this from personal experience and took it to the dealer on our way back from a trip. I watched as the technician located the thermal switch, tested it and found that it was "tripped" and replaced it. He also showed me how to reset it by pushing the button on it but, said that it should be replaced A.S.A.P. if it should ever trip again.
Hope this helps and good luck