12� Malfunction
Malfunction
No power at the sensor
Sensor will not switch ON
Sensor will not switch OFF
Sensor keeps switching
ON / OFF
Sensor responds when it
should not
Cause
■ Fuse has tripped, not switched
ON, break in wiring
■ Short circuit
■ Twilight setting in night-time
mode during daytime operation
■ Lamp faulty
■ Mains switch OFF
■ Fuse has tripped
■ Detection zone not correctly
adjusted
■ Continued movement within
the detection zone
■ Light is in detection zone and
keeps switching ON as a result
of temperature change
■ Light being operated is in
manual override mode
(LED ON)
■ Position Wi-Fi device very
close to the sensor
■ Light being operated in the
detection zone
■ Animals moving in detection
zone
■ Sudden temperature changes
due to weather (wind, rain,
snow) or air expelled from fans,
open windows
■ Position Wi-Fi device very
close to the sensor
– 22 –
Remedy
■ Activate, change fuse, turn
ON mains switch, check
wiring with voltage tester
■ Check connections
■ Reset
■ Lamp faulty, replace
■ Switch ON
■ Activate, change fuse, check
connection if necessary
■ Readjust
■ Check zone and readjust if
necessary or apply shroud
■ Adjust detection zone or fit
shrouds
■ Deactivate manual override
■ Increase distance between
Wi-Fi device and sensor
■ Adjust detection zone or fit
shrouds, increase distance
■ Adjust zone or fit shrouds
■ Adjust detection zone or
install in a different place
■ Increase distance between
Wi-Fi device and sensor