Lippert Slide-Out: “9 red flashes”
warning RV slide-out error codes
What it means
Hall power short to ground. The power feed to a motor's encoder (Hall sensor) has been shorted to ground, usually a wiring issue. The green LED shows which motor circuit is affected.
Most likely causes
- Pinched or chafed encoder power wire grounding against the frame most likely
- Damaged connector or harness shorting the sensor supply common
- Water intrusion creating a ground path less common
Safe checks you can do yourself
- Inspect the motor harness for spots where insulation is rubbed through against metal.
- Check connectors for moisture, debris, or bent pins shorting to the shell.
- Identify the affected motor via the green LED and concentrate the inspection there.
How to reset / clear 9 red flashes
- With power off, repair the shorted/chafed wiring.
- Energize the extend/retract switch once to reset.
- Energize the switch again to operate.
When to call a technician
If you cannot find the short, if the controller seems damaged, or if the code returns after repair.
Applies to
Schwintek In-Wall slide-out controller (Rev B and later) · Lippert OneControl-managed Schwintek slide systems
FAQ
What does Lippert Slide-Out code "9 red flashes" mean?
Hall power short to ground. The power feed to a motor's encoder (Hall sensor) has been shorted to ground, usually a wiring issue. The green LED shows which motor circuit is affected.
How do I reset Lippert Slide-Out 9 red flashes?
With power off, repair the shorted/chafed wiring. Energize the extend/retract switch once to reset. Energize the switch again to operate.
What is the most common cause of 9 red flashes on a Lippert Slide-Out?
The most likely cause is pinched or chafed encoder power wire grounding against the frame.
Related · Lippert slide-out
Battery drop-out fault. During a slide cycle the system volt… 3 red flashes
Low battery at start of cycle. When you pressed the switch, … 4 red flashes
High battery / over-voltage fault. The controller saw supply… 5 red flashes
Excessive motor current. One of the slide motors drew too mu… 6 red flashes
Motor short circuit. The controller detected that a motor or… 8 red flashes
Hall signal not present. The controller is not receiving the…
Sources
- Schwintek In-Wall Slideout System Operation and Service Manual — Error codes section, code 9: Hall power short to ground, usually a wiring problem (Lippert Components, Inc.)
- Schwintek In-Wall Slideout Troubleshooting and Component Replacement — Red LED 9 Blinks: Hall Power Short to Ground (RV Upgrade Store (Lippert document))
Note: Distinguished from code 8 by being a short-to-ground on the sensor power feed rather than a missing signal.
● Last verified 2026-06-29 · compiled from manufacturer documentation. Codes can vary by model year — always cross-check your unit’s manual.