Lippert Leveling System: “Jack Position Fault”
warning RV leveling system error codes
What it means
An error at one specific jack on the Ground Control 3.0 electric system, identified by position: Left Front, Right Front, Left Rear, or Right Rear. The controller has lost the expected feedback/signal from that jack's motor.
Most likely causes
- Open ground or short circuit in the wiring between controller and that jack's motor most likely
- Damaged, frayed, or disconnected harness at the jack or controller common
- Blown or damaged fuse at the controller for that circuit common
- Failed jack motor (e.g., Hall-effect feedback failure) even though the jack may still turn by hand less common
Safe checks you can do yourself
- Inspect the harness connectors at the named jack and at the controller for damage, corrosion, or looseness.
- Check and reseat ground connections.
- Check the controller fuses and replace any that are blown.
- Note whether the jack still moves under manual override (ratchet) while throwing the code; if it moves mechanically but still faults, the motor's feedback may have failed.
How to reset / clear Jack Position Fault
- Clear the code on Ground Control 3.0 by pressing and holding Retract + Enter together for about 3 seconds.
- If it does not clear, disconnect system power for several minutes, then reconnect and retry.
- Manually retract the affected jack if needed using a 3/8" drive ratchet in the motor port per the manual.
When to call a technician
Wiring, grounds, and fuses are confirmed good but the jack still faults, or if the jack motor needs replacement and you are not comfortable performing it.
Applies to
Ground Control 3.0 (5th wheel and travel trailer electric leveling)
FAQ
What does Lippert Leveling System code "Jack Position Fault" mean?
An error at one specific jack on the Ground Control 3.0 electric system, identified by position: Left Front, Right Front, Left Rear, or Right Rear. The controller has lost the expected feedback/signal from that jack's motor.
How do I reset Lippert Leveling System Jack Position Fault?
Clear the code on Ground Control 3.0 by pressing and holding Retract + Enter together for about 3 seconds. If it does not clear, disconnect system power for several minutes, then reconnect and retry. Manually retract the affected jack if needed using a 3/8" drive ratchet in the motor port per the manual.
What is the most common cause of Jack Position Fault on a Lippert Leveling System?
The most likely cause is open ground or short circuit in the wiring between controller and that jack's motor.
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Sources
- Troubleshooting a Lippert Ground Control 3.0 Leveling System Giving an RR/LR Error Code — etrailer expert Q&A citing Lippert Ground Control 3.0 troubleshooting (etrailer.com)
- Clearing Fault Code and Manually Operating Lippert Ground Control 3.0 — etrailer expert Q&A (reset and manual-override procedure) (etrailer.com)
Note: Position abbreviations (LF/RF/LR/RR) are confirmed by etrailer's Lippert-based troubleshooting; LF/RF are inferred by symmetry from the explicitly documented RR/LR. This applies to the Ground Control 3.0 electric system, not the hydraulic Level-Up. Always confirm the exact code and motor part (e.g., Hall-effect motor) for your unit before ordering parts.
● Last verified 2026-06-29 · compiled from manufacturer documentation. Codes can vary by model year — always cross-check your unit’s manual.