
75.0034.03 ULTIMO 20220120
Page 19 of 20
TROUBLESHOOTING
ORANGE LED
GREEN LED
GREEN LED
illuminates
sporadically
The sensor is disturbed by rain
and/or leaves.
Increase radar immunity filter and adjust the
radar field angle.
Ghosting created by door
movement.
Change radar field angle.
The sensor vibrates.
Check if the sensor and door header is secure.
Check position of cable and sensor cover.
The sensor sees the door
or other unwanted moving
objects.
Remove the objects if possible.
Change radar field size, angle, or immunity.
1
E1 - orange LED
flashes once
The sensor signals an internal
fault.
Replace sensor.
2
E2 - orange LED
flashes twice
The power supply voltage is too
low/high.
Check power supply voltage in Diagnostics
menu (menu 3) of the LCD.
Check wiring.
3
E3 - orange LED
flashes 3 times
Radar communication error
Check the connection at the radar.
4
E4 - orange LED
flashes 4 times
The sensor does not receive
enough AIR energy.
Ensure proper mounting height.
Turn on the visible red spots and adjust the
angle of the AIR curtains.
Deactivate curtain #3 (C3, outer curtain).
5
E5 - orange LED
flashes 5 times
The sensor receives too much
AIR energy.
Ensure proper mounting height.
Turn on the visible red spots and adjust the
angle of the AIR curtains.
The sensor is disturbed by
external elements.
Eliminate the cause of disturbance (lamps,
rain cover, etc).
8
E8 - orange LED
flashes 8 times
AIR power emitter is faulty.
Replace sensor.
ORANGE LED is on
The sensor encounters a
memory problem.
Cut and restore power supply. If ORANGE
LED illuminates again, replace the sensor.
troubleshooting continues on the next page