How much further does it need to go? That looks similar to how far mine travels, may be within the specs of travel.
If it is supposed to indeed move further, I would start by inspecting the rubber weather stripping to make sure there’s nothing obstructing the travel limits. You might also manually move the slide in and out to see exactly how far it is supposed to go, that would give you info as to whether or not there’s a limit switch or motor problem
Mine doesn’t extend to flush and I’m pretty sure it’s designed that way. There is a certain amount of play in the rubber bushings to allow them to be effective for the life of the trailer. The stop will never be the mounding so it will never be flush. I wouldn’t pay it any mind.
It would help to mention the type of mechanism. On the Lippert Schwintek slides you’re supposed to hold the direction button down for a couple of seconds after end of travel. That syncs up the four motors. If you have that type of system you might need to go in and out a couple of times to sync it up. Search Youtube for videos.
Just operate the slide and listen to it work. If its Schwintek, you should hold the button and be able to see it go to full movement and the motors can be heard to strain as the reach the travel limit. If unsure, hit the button a se knd time after it stops. Thing are pretty much the same for cable operated slides – motors will strain at end of movement. Screw jack type slides with make a skipping / ratcheting sound when they reach full stroke.
I’m going to bet this is a cable driven slide with the mechanism behind your top fascia. This is normal and not a problem.
I had one that did that and it was caused from the seal coming off and wouldn’t let it sit flush any more. I had to pull the seal off and reset it and then it worked fine.
Source: Slide out won’t go all the way out any idea how to fix?
