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Those are indeed the proper ways to keep from having Schwintek issues BUT I use all the proper procedures and still have problems. It's well known within the industry. I would add that you must have fully charged batteries before operating the slide.This brings us to the other side of the equation—owners not understanding how the system works and proper operation. We have said this time and again: The unit must be level and secure before extending or retracting the room, otherwise the twisting and resistance on the gear and motor will create issues. Most trailer and 5th wheel owners pull into the campground and extend the rooms before doing this, as it requires them to go outside to extend the stabilizers or jacks. Even if the unit is level, the weight of the room extending can twist the sidewall at the opening just enough to put resistance to the fastening points such as the rivets. Once the rails are loose, it’s not long before there is a problem.
Also, one of the biggest issues according to the Schwintek technician is synchronizing the motors. In the owner’s manual, it states that when extending or retracting, keep the button pushed in even after the room touches the wall and until the motor stops. This allows the two motors to “sync” back together. Most RV manufacturers do not build a slide room with the same weight on each side of the room, so one motor may be required to work harder than the other. Plus, no RV owner packs their ”stuff” with weight distribution in mind, so the motors will get out of sync.
Most owners let go of the button when the room touches the side as the motors start to “whine” like they are going to burn up! So the more the room gets extended and retracted without the synchronizing procedure, the more the motors get out of sync or alignment and eventually stop working due to the resistance.
Bob