Special Jack Error Codes; System Settings; Zero Point Calibration - Lippert Components Ground Control 3.0 Service Manual

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. 1G) to extend the front jacks (if required).
B. Press "REAR" (Fig. 1J) to extend the rear jacks (if required).
C. Press "LEFT" and "RIGHT" (Figs 1H and Fig. 1I) 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.
LCD Message
***ERROR***
LF Jack
RF Jack
LM Jack
RM Jack
LR Jack
RR Jack

System Settings

Zero Point Calibration

The "Zero Point" is the programmed point that the trailer will return to each time the Auto Level feature is
used.
NOTE: Prior to starting this procedure, double check all connections on the controller, jacks, and touch pad.
1.
In manual mode, run the jacks to level the trailer. This is best achieved by placing a level in the center
of the trailer and leveling it both front to back and then side to side. (See "Basic Jack Operation" for
instructions on how to manually operate the system).
2.
Once the trailer is level, turn off the touch pad.
3.
With the touch pad off, press and release the "FRONT" button (Fig. 1G) five (5) times and then press
and release the "REAR" button (Fig. 1J) five (5) times.
4.
The touch pad will flash and beep and the display will read "ZERO POINT CALIBRATION ENTER to set,
Power to Exit" (Fig. 12).
5.
To set the current position as the zero point, press the "ENTER" button (Fig. 1C).
6.
LCD display will read "Zero point stability check" (Fig. 13).
7. LCD display will read "Zero point set successfully" once process is complete (Fig. 14).
8.
The system will set this point as its level state and the touch pad will turn off.
Fig. 12
Rev: 05.23.2017
What's Happening?
Error at a specific jack (left
front, right front, left middle,
right middle, left rear, right
rear). Hall signal issue (open,
short, malfunction or loss of
communication); open or short
circuit between controller and
motor.
Fig. 13
What Should Be Done?
Check harness connections
at controller and at jack.
Check harness for damage.
Check fuses at controller.
Repair or replace as necessary.
Fig. 14
Page 9 Ground Control 3.0 Service Manual