Dometic MWE 4104 Instructions De Montage Et De Service page 12

Troubleshooting
Low error tone for three seconds after switching on the ignition.
One or more sensors are defective or no longer connected to the control
electronics.
After the low tone, the loudspeaker emits the same number of beeps as the number
of the defective sensor, e. g. two beeps for sensor 2.
If more than one sensor is defective, they are shown in succession.
The LED display also indicates the defective sensor (fig. 5; sensor 1 has the shortest
connection cable, sensor 4 the longest):
• Upper orange LED: Sensor 1
• Lower orange LED: Sensor 2
• Upper red LED: Sensor 3
• Lower red LED: Sensor 4
➤ Check the plugs and make sure they lock into place.
➤ Replace the defective sensor(s).
A
NOTICE!
The system does not work if one or more sensors are defective.
Device indicates obstacles incorrectly
False alarms may have the following causes:
• Dirt or frost on the sensors.
➤ Clean the sensors.
• The sensors were incorrectly installed.
➤ Adjust the position of the sensors (fig. 3).
➤ If necessary, set the detection range of the sensors (see chapter "Setting the
detection range of the sensors" on page 9).
➤ If necessary, set the sensitivity of the sensors (chapter "Setting the sensitivity of
the sensors" on page 10).
• The sensors are in contact with the chassis.
➤ Disconnect the sensors from the chassis and secure the sensor correctly in the
sensor holder.
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MWE4104
EN