Safety first: Never crawl under an RV supported only by leveling jacks. Chock wheels, keep people clear of moving jacks, and do not travel until every jack is fully retracted or secured according to the manufacturer procedure.

When Lippert Ground Control jacks refuse to retract, the safest path is to separate low voltage, controller logic and mechanical binding before forcing anything. The checks below are arranged from simple observation to the point where model-specific service work, live-voltage testing, propane adjustment or heavy mechanical work should stop.

Start with travel safety

If a jack is down, the RV is not ready to move. Chock the wheels, keep bystanders away, and avoid using the truck or tow vehicle to drag a stuck jack free. A bent jack leg can become a much more expensive repair than the original electrical problem.

Battery voltage is the first suspect

Lippert electric leveling systems pull heavy current. A battery that runs lights may still sag too low when jacks move. Check battery state, converter support, battery disconnect position, corroded terminals and main grounds. If the panel complains about low voltage, believe it until proven otherwise.

Look for stuck footpads or side load

A jack foot can sink into soft ground, freeze to a block, catch on a pad, or bind if the RV shifted. Remove obvious external obstruction only if it is safe. If the leg is side-loaded or bent, forcing retraction can damage the motor, gearbox or mounting structure.

Use manual controls thoughtfully

Many systems allow individual jack operation or manual retract procedures. Use the installed manual for the exact controller and generation. Do not hold a button forever against a stalled motor. Short attempts with cooling time are safer than cooking wiring or motors.

Read the controller before clearing it

Write down any error message, blinking light or jack position clue before resetting. A low-voltage error, out-of-stroke condition, hall-effect issue or motor error points in a different direction. Clearing the code first can make the next diagnosis slower.

When a motor or wiring fault is likely

One jack dead while the others move points toward that jack's motor, wiring, connector, controller output or mechanical binding. All jacks dead points more toward battery, main fuse/breaker, controller power, ground or panel communication. That split saves time.

Tools, difficulty and likely cost

  • Difficulty: Beginner for observation and basic reset checks; medium to advanced once covers, live power, propane, motors or control boards are involved.
  • Useful tools: Installed model number, owner manual, flashlight, phone camera, basic multimeter if trained, and a notebook for error codes or timing clues.
  • Likely cost: Free for setup and supply checks; moderate for common service parts; higher if wiring, control boards, motors, propane valves, sealed refrigeration or structural repairs are needed.

Related RV Solver pages

FAQ

Why do Lippert Ground Control jacks say low voltage?

The jack system may be seeing voltage sag under load from a weak battery, poor converter support, bad connection or ground issue.

Can I tow with one leveling jack partly down?

No. The RV should not travel until the jack is fully retracted or secured by the proper emergency procedure.

Should I reset the controller first?

Record the error first. Resetting may help after the cause is corrected, but the original message is useful evidence.

Still narrowing it down?

The guided troubleshooter walks through the symptom in a safe order and points you toward the right system.

Open the troubleshooter

Sources and review notes

Use the data plate, installed owner manual and service information for the exact brand, model and revision in the RV. Brand names are used only to help owners identify common equipment families; exact procedures, limits, codes and parts can change by model year and installation.