The only big problem was the Xantrax Prosine 1800, we never verified it worked during the walk through. The lcd screen only said Prosine 1800 on it, nothing else. I ran through the troubleshooting routine, called Xantrax several times (very helpful folks). After they determined the unit was bad they recommended I contact the Jayco dealer. The dealer contacted the Jayco folks to get the ball rolling on a replacement unit. Other than that only little things I fix myself. How about your's?