Troubleshooting An LR Error Code On A Lippert Ground Control 3.0 Leveling System

Question:

307296 ELECTRIC JACK 4pt 5TH WHEEL RF LEVELER. LR errors swapped right rear and left rear and still getting a LR error. What could be the issue.

asked by: Zachary

Expert Reply:

An LR error code would indicate an electrical error with the left rear jack. You'll want to start by checking the fuses on your controller to ensure that it hasn't blown. You can use a circuit tester # PTW2993 and touch it to both contacts on the top of the fuse to check for power. From there you would need to trace the wires back to the jack to see if there's any damage, loose connections, or corrosion.

If you find no damage then I would test the power at the jack using a multimeter # PT89ZR to see how much voltage is getting to it. If you're not getting 12.75 volts then your issue is the power source. If the power is fine then normally I would say the jack is bad and to swap it out with part # LC305339, but you stated you swapped the right over to test and still got the error so it really leads me to believe there's some sort of issue with the wiring running to the left leg or the controller is bad. Check out your wiring and let me know what you find and we can keep troubleshooting further if the issue isn't found.

expert reply by: Kevin C