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Here's a page from the LCI manual, if that's the brand you have.
“Jacks Down" Alarm
The leveling system is designed to sound an alarm and illuminate the touchpad in the event of two possible
scenarios:
1. A retract hose leak.
2. The pressure holding the jacks in the retracted position falls to approximately 1500 psi, which activates
the alarm. If the alarm sounds and the touchpad illuminates and flashes while driving the vehicle:
A. Immediately find an area to safely pull the vehicle off of the roadway.
B. Set the PARKING BRAKE.
C. Inspect all jacks, hoses and valves for leaks.
D. If no leaks are observed:
I. Turn leveling system touchpad on.
II. Press RETRACT button (Fig. 1D).
III. Wait until “JACKS DOWN” light and alarm turn off.
IV. Inspect jacks. If jacks are retracted and no leaks are observed, vehicle can be driven.
E. If system is leaking or alarm does not subside after applying step 2, disconnect wires from pressure
switch and proceed immediately to a service center.
Note: The pressure switch is a blue and gold colored valve located on the power unit manifold identified
by the spark proof style connector with yellow and black wires. See figure 5.
Note: For prolonged travel to the service center, periodically stop and check the disposition of the leveling
jacks to make sure they are not extending.
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