Lippert Slide-Out: “8 red flashes”
warning RV slide-out error codes
What it means
Hall signal not present. The controller is not receiving the position (encoder) feedback from a motor's Hall sensor, so it cannot track that side's movement. This is the most commonly reported Schwintek fault and usually points to wiring. The green LED shows which motor's signal is missing.
Most likely causes
- Broken, pinched, or chafed wire in the system harness or motor pigtail most likely
- Loose or corroded connector at the controller or motor common
- Failed Hall-effect sensor inside the motor common
Safe checks you can do yourself
- Inspect the full motor harness and pigtail for pinch points, cuts, or chafing, especially where wires flex with the room.
- Reseat the motor and controller connectors and check for corrosion or bent pins.
- Use the green LED to identify which motor (1 or 2) lost its signal and focus on that side.
How to reset / clear 8 red flashes
- With power safely off, repair any damaged wiring or reseat connectors.
- Energize the extend/retract switch once to reset the controller.
- Energize the switch again to operate.
- If movement is now uneven, run the resync (full extend, retract 8-10 inches, repeat at least three times).
When to call a technician
If wiring looks intact but the signal is still missing (likely a failed sensor or motor), or if you cannot locate the harness damage.
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 "8 red flashes" mean?
Hall signal not present. The controller is not receiving the position (encoder) feedback from a motor's Hall sensor, so it cannot track that side's movement. This is the most commonly reported Schwintek fault and usually points to wiring. The green LED shows which motor's signal is missing.
How do I reset Lippert Slide-Out 8 red flashes?
With power safely off, repair any damaged wiring or reseat connectors. Energize the extend/retract switch once to reset the controller. Energize the switch again to operate. If movement is now uneven, run the resync (full extend, retract 8-10 inches, repeat at least three times).
What is the most common cause of 8 red flashes on a Lippert Slide-Out?
The most likely cause is broken, pinched, or chafed wire in the system harness or motor pigtail.
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… 9 red flashes
Hall power short to ground. The power feed to a motor's enco…
Sources
- Schwintek In-Wall Slideout System Operation and Service Manual — Error codes section, code 8: Hall signal not present, encoder is not providing a signal, usually a wiring problem (Lippert Components, Inc.)
- Schwintek In-Wall Slideout Troubleshooting and Component Replacement — Red LED 8 Blinks: Hall Signal Not Present (RV Upgrade Store (Lippert document))
Note: Widely reported by owners as the most frequent code; the manual attributes it primarily to wiring/encoder problems.
● Last verified 2026-06-29 · compiled from manufacturer documentation. Codes can vary by model year — always cross-check your unit’s manual.