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Panel Troubleshooting
The FRONT, RIGHT, REAR or LEFT cylinder lights are flashing. This is indicating the low points of the coach as it
sits, nothing is wrong with the control; it is constantly monitoring the level status of the vehicle.
Our panel will shut off by automatically after five minutes of no use. Panel will also turn on automatically
when the ignition turns on, this is a safety feature monitoring the cylinder position (making sure they are
retracted) and is only drawing power for the two LED's. The panel will shut off again after five minutes by itself
after no use or ignition shuts off. With the ignition on, the panel power lights can be shut off, but the ALL UP
light will stay on for safety.
LOW VOLTAGE CODE: FRONT and REAR lights flashing, control is seeing low voltage (less than 9.5-10v). Shut
the panel off. Charge the house batteries, when they supply enough voltage, try system again (at least 15
minutes). If low voltage code comes on again, or never goes away, you may have to unplug the interface
harness (between the panel and sensor) at the back of the control panel or the front of the sensor to clear the
error code. Repeat battery charging. See location chart on last few pages next to picture of leveling sensor.
TIME OUT CODE: When AUTO leveling, if the LEFT and RIGHT lights are flashing, the system timed out, or
there was movement in the coach during auto leveling or the cylinders ran out of stroke in order to reach level
(re-park or add blocks to low corner cylinders).
If there is no ALL UP light, and the vehicle ignition turns on, the panel's alarm will sound. The alarm cannot be
shut off until: The ignition is shut off or the ALL UP light comes on. The ALL UP light is tied to each cylinder's
limit switches in the wire harness (grounded in-series circuit, normally closed limit switches, once limit switch
mates circuit is broken and ALL UP light comes on). If one switch is not made the ALL UP light will not come on.
Press the RETRACT button to retract the cylinders, pump will run until the ALL UP light comes on or 2 minutes.
If you get a false ALL UP light (light on but one or more cylinders not fully retracted), check the wire
connectors at all the limit switches, they are male and female spade connectors, they may have a poor
connection or not plugged in all the way. If the connections are good then there may be moisture/rust in the
limit switch or it is defective. Press and hold the EMERGENCY RETRACT button to retract the cylinders and
override the limit switches, once button is released panel will shut off. Sometimes the limit switches can be
taken off and cleaned, sprayed with WD40. Part #M50103FLAT to order replacement limit switch and pin,
need 7/8" wrench only, wires are spade connectors (plug/unplug).
If you do not get an ALL UP light but cylinders are retracted, press and hold EMERGENCY RETRACT to see if
that works. Otherwise, there could be a limit pin bent or missing/loose footpad not allowing pin to make
contact with limit switch. Straighten pin or re-attach a footpad (if missing, disconnect limit switch wires to
open the circuit). See Fig.4 for schematic or part #'s. If customer has access to hardware store, a ¼" vacuum
cap can be placed under pin to help reach bent footpad. Customer can also disconnect wires on limit switch to
open circuit (this will give you a false ALL UP light).
Limit Switches
We use a mechanical ball switch for our cylinder retract indication. This simple normally closed switch is on a
grounded circuit, when the limit switch is made it breaks the circuit (for the light to come on). These switches
can get road debris, rust, etc. inside the ball switch itself and make the switch stick. Also the pins can bend
from contact with the footpad hitting a curb or parking lot during your drive. These parts are simple in design
and replacement and fairly in-expensive compared to competition's internal pressure switch located inside the
pump assembly on the manifold buried underneath the vehicle. See Limit Switch Maintenance page.
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Table of Contents
Troubleshooting
