Thought I would share my experience with a "top notch" service facility not to be named. They replaced my chassis a/c compressor and other components..and that is a story in itself. When I got the coach back the l/r slide was open about 2 inches...the house batteries were dead..so I thought I would pull in the slide at home when plugged in. Lo and behold the slide would not come all the way in..hung out about 8" on one side and 6" on the other.I had to take the coach back because the "new" a/c wasn't working. I had them look at the slide. Of course they denied everything and told me it was a factory defect..very common and would need to replace the entire mechanisim..about $7,000. I didn't want them to touch anything after the a/c debacle.When I got home I researched and found you can resync your motors by opening the slide all the way..bringing it in about 8" then reopen all the way again...repeat about three times.....IT WORKED!PM me for the name of the shop. Bottom line is don't believe everything they tell you...do your research