Most repairs are by way of looking up each manufacturer ( devise thats in question) and getting the manual .... Ebay helps for ID of parts as the photos that folks do can give you a clue..... otherwise there are hidden parts suppliers online... One example is the shower door rollers ..... found a new style the works better than the stock style. But that took a ton of digging to find them. As everyone says. Need a GREAT DR., GREAT RV mechanic you know the rest.....
FIXIN' Everything on earth but Broken Hearts!!