Troubleshooting Right Rear Motor Fault on Lippert Ground Control 3.0 Trailer Jack System

Question:

lippert 3.0 auto level motor. dog chewed thru wiring to R/R motor did not know it. tried to hook up. pressed auto hitch height heard a pop. little re light came on. and fault for R/R jack came on. opened rubber boot under jack motor and black dust like grafite came out. camping world said motor bad. replaced motor. still red light and icon for R/R motor fault. what else could be problem? fuse on control board? thanks. motor and leg are not attached at this time, just set unit next to camper so i could hook wires up to see if problem fixed.

asked by: Robert B

Expert Reply:

Hey Robert, thanks for reaching out!

When you hooked up the motor for your Rear Right Leg # LC344792 did you by chance check any fuses tied to that motor as well? Check that all of your connections are good and check that any fuses have been replaced.

When you say the motor and leg aren't attached at this time do you mean they aren't attached to each other, or that they aren't attached to the trailer?

expert reply by: Jon G

Robert D.

5/6/2024

Thanks Jon for your response. Motor and leg where attached together, Just laying on a tire so it was high enough to connect wires. Did attach leg and motor to RV, but first had to manually retract leg all the way up to bolt onto RV. No change on fault code. Removed fuse at main control board, visual inspection it looked good. Red blinking light on outside leveling control stopped blinking. But inside iPad control still showed a fault for RR jack. Had to really wrench at separating the wire connectors for the jack motor. Needed two big pliers,and lot of twisting and pulling to separate the connector. Main power wires not 3 tiny wire connector. You mentioned more fuses? Would that be by the motor? Will not be home to check until weekend. Thanks again for the help.

Jon G.

5/7/2024

@RobertD Thanks for the extra information! Since the fuse for the right rear jack looks good you might consider swapping it with a different fuse just to check and make sure that isn't the problem. I just meant to make sure that all of your fuses for the Ground Control 3.0 are in good working order so you can swap them out like this. You'll need to run through the "Special Jack Error Code" steps in this case, provided you haven't already done so: Special Jack Error Codes To clear one of the error codes listed below: 1. Correct or otherwise repair the issue (see the table below). Note: In order to clear the special jack error code the jacks need to be “homed.” In order to “home” jacks, each jack MUST be able to retract a minimum of 6”. 2. Extend all jacks to reach the 6” of minimum retract needed. A. Press “FRONT” (Fig. 22G) to extend the front jacks (if required). B. Press “REAR” (Fig. 22J) to extend the rear jacks (if required). C. Press “LEFT” and “RIGHT” (Fig. 22H and Fig. 22I) simultaneously to extend the middle jacks (if equipped and required). 3. Press and hold the retract button until all of the jacks begin to retract. The jacks will retract until they reach the hard current limit. 4. The jacks are now “homed” and the special jack error code will be cleared. Note: If the jacks do not retract, an error should display on the touch pad screen. This is typically caused by wiring interruption.

Robert D.

5/9/2024

@JonG thanks. I'll try that. Really appreciate the help.