Even the slightest chance you were trying to run on propane and were out?? Or air in the line?? Does seem odd that it would run on electric only.
If you're planning to keep this TT for a long time, changing over to an electric only/off the shelf frig might work out just fine. But...if you're thinking a couple of years down the road maybe a change, knowing that the new owner would need to shell out that much money to get back to the elect/propane system would be a deal breaker for us.
Doesn't it just figure that you're not all that far out of warranty and it dies! Rats!!