Clarification, please. Is it an RV "Dometic" fridge that runs on propane or electricity or a house-type "domestic" fridge that runs only on 115v electricity?
If it's the former, then you may have an expensive problem on your hands. We did, two seasons ago, at which point the fridge was starting its 11th season. We found it dead when we powered up the RV two days before departure for the first trip of the season. We went on the trip anyway, but must have stopped at every supermarket on the Oregon coast to buy ice. After we got home, we had a new Dometic fridge installed - close to $1800!
If it s "domestic" household fridge, which would be unusual in a rig from 1999, then it might just be a tripped circuit breaker.