Lippert In-Wall and through-frame slide controller fault codes
Lippert In-Wall (Schwintek) slides use one motor per side. Each motor turns a torque shaft with spur gears that run on gear racks on the room. A dual-motor synchronous velocity controller keeps both sides in step, using motor Hall sensor feedback. Lippert Electric Through Frame slides use a rack and pinion guide system with an electric ball screw actuator. The actuator has an automatic clutch.
Lippert slide code 2
Battery drop out. Charge the battery and check the supply cable.
Lippert slide code 3
Low battery. Charge the battery. Recheck voltage at the controller.
Lippert slide code 4
High battery. Check the charger or converter output.
Lippert slide code 5
Excessive motor current. Look for binding, obstruction or rack debris on the side that stalls.
Lippert slide code 6
Motor short circuit. Inspect the motor and motor wiring for a short.
Lippert slide code 8
Hall signal not present. Check for pinched or broken wiring in the harness or motor pigtail, and for a disconnected or bad motor.
Lippert slide code 9
Hall power short to ground. Replace the motor.
Lippert slide: No move
Room does not move when the switch is pressed. Clear any obstruction. Check battery voltage, the fuse and the wiring for loose or corroded connectors.
Lippert slide: Runs no move
Motor runs but room does not move. Check the actuator jam nuts and nylock nuts at the front drive bracket. If they are OK, the motor or gear housing is bad.
Lippert slide: Slow
Motor runs but room is slow. Charge the battery, check the ground wire, check room adjustment for a bind.
Lippert slide: Stall
Room stalls mid travel. Crank the manual override a short distance, then retry the switch. Replace the actuator if that fails.
Learn the system
- How a slide room is built and carried
- Identify the slide system in a minute
- The in-wall controller: versions and fault codes
- Ball-screw actuator slides: clutch, stops, diagnosis
Practice it on a service call
Guided diagnosis
Full field guide: Lippert In-Wall and through-frame slide controller
Codes come from the maker manuals and public service sheets. Your model's own chart always wins, and LP and 120 volt work belongs to a qualified technician.