How To Test for Bad Controller on Lippert Ground Control 3.0 Electric Leveling System

Question:

I am on level concrete. I push auto level. Starts its process. Get out of stroke on LM jack. When I get this the RF jack will not move up until i hit retract and start retracting. Then stop and will raise. Do auto level again same thing. Changed LM jack to LR spot and hit auto level. Got LM out of stroke again with different jack and LF will not move unless I do that process of retracting and then raising. I rehomed and recalibrated the system several times. Battery voltage is good and checked batteries for weak. All good. Pulling 10 to 14 amps when running the system. Would the controller be bad.

asked by: Ralph H

Expert Reply:

In order to test the controller on the Lippert Ground Control 3.0 Electric Leveling System you'll first need to obtain a multimeter. Once you have this then you will need to use the ground probe and place that on the green wire coming from the back of the harness and then use the power probe and place that on the black wire coming from the back of the harness. You should read 12 volts but if you do not have 12 volts you will need to trace this wire back while checking for shorts. It will be a good idea to check the batteries to make sure they are fully charged at this time as well.

If you get 12 volts at the back of the control panel you are then going to want to check the communication signal. In order to do this you will want to use the ground probe and place that on the yellow wire and then place the power probe on the red wire. You should see between 5-7 volts here. If you do then you will need to replace the control panel with the Replacement Control Panel for Lippert Components Leveling System part # LC421484. If you do not then most likely the control board will need replaced with the Replacement Control Module for Lippert Ground Control 3.0 Electric Leveling System part # LC304136.

expert reply by: Conner L