EN
DURO
®
EM303A
+
38
Ref: EM303A
+
-UM-TKI-0116-Rev.A.
Regularly clean the drive units with a water hose to dissolve mud etc.
Please check regularly the distance between the rollers and the tyres. In the neutral (fully disengaged) position
this must be about 20mm.
Once a year have your caravan manoeuvring system maintained and visually inspected. This inspection must
include all the bolt/nut connections, the cables and electrical connections and lubrication of movable
parts/joints.
In case of any failure or problem, please contact your EN
DURO
®
supplier.
TROUBLE SHOOTING
Should your manoeuvring system fail to operate, please check the following:
Unit fails to operate, does not function at all:
Make sure that the battery power isolation switch (29) is turned on.
Check the cable-connection between the caravan battery and the control unit.
Check the fuse (80A) in the red positive battery cable (Fig. 6). If the fuse is blown, it must be replaced with a
fuse of the same value (80A). Never “bridge” the fuse (if needed contact your EN
DURO
®
supplier). To replace the
fuse, first disconnect the positive (+) power cable from the battery. Than release the mounting screws that hold
the fuse (Fig. 6A), replace the fuse (Fig. 6B), and finally tighten the screws securely. Close the housing of the
fuse and connect the positive (+) power cable again to the battery. The system is ready again for use.
Check the battery of the remote control handset. If empty, renew the 9V battery.
Caravan battery could be empty. If empty, recharge completely or renew caravan battery before taking any
further action.
Caravan battery could be overloaded. Check your charging equipment and try to discharge the battery by
connecting/using a light or any other load. If this does not give any result, renew caravan battery before taking
any further action.
Check the distance between the remote control and the caravan is not more than 5 metres. If there is no signal
between the remote control handset and the control unit, the manoeuvring system will not function at all and
the green LED on handset is blinking.
Check if there is any distortion signal (other transmitter, high power cables, Wifi etc.) that disturbs a good
communication between remote control handset and control unit. If there is no good communication between
the control unit and remote control handset, the manoeuvring system will not function and the green LED on
remote control handset is blinking.
In general, all error messages will reset automatically after one minute. If this is not the case, reset the
electronics of the manoeuvring system by switching off the manoeuvring system via the isolation switch and the
remote control handset for at least 15 seconds and then turn them on again.
Unit fails to operate or moves intermittently:
Check the battery of the remote control. If empty, renew the 9V battery.
Caravan battery could be empty. If empty, recharge completely or renew caravan battery before taking any
further action.
Caravan battery could be low - with the rollers engaged. Check the voltage drop on the caravan battery, if this
drops well below 10 volts, charge or renew caravan battery
Caravan battery could be overloaded. Check your charging equipment and try to discharge the battery by
connecting/using a light or other load. If this does not give any result, renew caravan battery before taking any
further action.
Check the cable-connection between the caravan battery and the control unit.
Badly connected or corroded battery terminals can cause intermittent problems, check battery terminals, clean
and connect again.
Check the distance between the remote control and the caravan is not more than 5metres. If there is no signal
between the remote control handset and the control unit, the manoeuvring system will not function at all and
the green LED on handset is blinking.
