I'll chime in on my problem, On the 2007 Itasca Horizon there are 4 slides, all HWH. The front 2 are flat floor and have locks. The driver's side works, I can hear the motor work and engage. The passenger does nothing. I figure either the switch or locking mechanism. So far not that big a deal and not sure where the mechanism is to inspect. If it's an easy to locate item that someone knows where it is, I'll jump into it. Otherwise I'll research and tackle it when I run out of things to do.
2007 Itasca Horizon 40FD, 2015 Harley Davidson FLHTKL, 2012 Jeep Wrangler Sahara