35
Malfunction Cause Remedy
No power at the sensor
n Fuse faulty, not
switched ON,
break in wiring
n Short circuit
n New fuse, turn ON
power switch, check
wiring with voltage tester
n Check connections
Sensor will not switch ON
n Twilight setting set to
night-time mode during
daytime operation
n Bulb faulty
n Mains power switch
OFF
n Fuse faulty
n Detection zone not
properly targeted
n Adjust setting
n Change bulb
n Switch ON
n Fit new fuse, check
connection if necessary
n Readjust
Sensor will not switch OFF
n Continuous movement
in the detection zone
n Light being operated
is located in detection
zone and keeps switch-
ing ON as a result of
temperature change
n Light being operated
is in manual override
mode (LED ON)
n Check zone, adjust or fit
shrouds if necessary
n Change detection zone
or fit shrouds
n Deactivate
manual override
Sensor keeps switching
ON/OFF
n Light being operated is
located in the detec-
tion zone
n Animals moving in the
detection zone
n Change zone
or fit shrouds,
increase distance
n Change detection zone
or fit shrouds
Sensor reach
change
n Change in ambient
temperatures
n Use shrouds to define
detection zone precisely
12� Troubleshooting
GB
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