We recently purchased a 1984 Jayco Jayraven20. It has been immaculately kept indoors for 10+ years. When it was used it was primarily for sleeping and hardly any of the appliances, bathroom ever used. It is a real time capsule in like new condition. We have been trying to get the fridge (Dometic RM660) to run, with no success. We have removed it, "burped" it, (left upside down for 48 hours) we cleaned the jet and burner tube. We were then able to get the pilot light going. Left it for a few hours and still was not cooling. When on electric, the heating element gets very hot. Either way, the fridge does not get cold. No sign of an ammonia leak. Any advice would be greatly appreciated as we would hate to junk any part of the original pieces in this gem.