Got a Lippert in-wall slide-out room in your RV that's acting funny—moving unevenly, sticking, or not moving at all? The controller might be the culprit. This is an upgraded replacement for the Lippert dual-motor synchronous speed controller. The part number you're looking for is 13398-DO (it replaces the older 13398-C2). It's also known as a V-Sync II controller. What it does is manage the two motors that drive your slide-out, making sure they move in sync so the room extends and retracts evenly and smoothly. This upgraded version has better moisture protection with an SR waterproof coating and uses solid capacitors for more reliability and a longer life. It runs on your RV's 12V DC system (works from 8V to 18V) and has LED lights (green and red) to show status or error codes. Installation is usually a direct swap—unplug the old controller and plug this one in. But of course, make sure it's compatible with your specific Lippert slide system before buying. A good controller is key to avoiding a slide-out that's stuck out on the road or crooked.
