WE have a 1999 Rexhall with two slide. The living room slide works great. The rear, bedroom slide does not. I think there are two issues, one is the discalimer that the room cannot be expended without canopy locks being released.
the other issue is that the prior owner by passed the lock on the rear unit so that there is constant power from the front. It has worked before and do not know why. The pump motor was replaced recently., There is reference to canopy licks which we cannot find.
The pump motor runs, the f\hydraulic lines flex but no movement.