296 ARR1575
18 Troubleshooting
18.1.7 Manual control
Infrared light emitter
When ignition is turned on, indicator lamp test is displayed briey. Both LEDs are ashing.
On this occasion, check that the LEDs function properly. Otherwise, the unit must be replaced.
Defect description, manual control
Defect description Probable cause Check
The indicator lamps are never on.
N3 infrared light emitter The battery might be discharged or defective. Connect
the control to the cable. If the battery is defective, re-
place the control.
The red indicator lamp is ashing
(the cable is not connected).
The red indicator lamp is ashing
(the cable is connected).
The red indicator lamp is continu-
ously on.
The red indicator lamp is on even if
the control is activated.
N3 infrared light emitter No defect! Charge the battery.
No defect! The battery is charging.
No defect! The battery is fully charged.
The battery is charged, no data is transmitted to the
machine.
The green indicator lamp is always
ashing when the control is acti-
vated.
N3 infrared light emitter No defect! Data is transmitted to the machine.
Both indicator lamps ash synchro-
nously.
N3 infrared light emitter No defect! The infrared light emitter connects to the
machine control unit.
This happens always when:
• another manual control connects to the machine
via acable for the rst time.
• ignition turns on.
If indicator lamps are ashing, the engine cannot be
started.