Troubleshooting - STEINEL L 691 S Manual

11. Troubleshooting

Malfunction
Sensor-switched light without
power
Sensor-switched light will not
switch ON
Sensor-switched light will not
switch OFF
LEDs do not go out at about
midnight as desired
LEDs do not switch OFF
completely
Sensor-switched light switching
ON when it should not
Sensor-switched light's reach has
changed
Cause
■ Fuse has tripped,
not switched ON,
break in wiring
■ Short circuit
■ Twilight setting in night-time mode
during daytime operation
■ Mains switch OFF
■ Fuse has tripped
■ detection zone not correctly
adjusted
■ Continued movement within the
detection zone
■ Sensor unit is not properly engaged
■ Sensor light is in the calibration
phase (user-friendly economy
programme)
■ External light source (e.g. other
motion detector or light) is
deactivating the sensor-switched
light
■ User-friendly programme selected
■ Wind is moving trees and bushes in
the detection zone
■ Cars in the street are detected
■ Sudden temperature changes due
to weather (wind, rain, snow) or air
expelled from fans, open windows.
■ Differing ambient temperatures
– 18 –
Remedy
■ Activate, change fuse, turn ON
mains switch, check wiring with
voltage tester
■ Check connections
■ Reset
■ Switch ON
■ Activate, change fuse, check
connection if necessary
■ Readjust
■ Check detection zone and
readjust if necessary
■ Lightly press sensor unit to clip it
into place
■ See note on user-friendly
economy programme
■ Shade the sensor-switched
light from extraneous light, then
monitor the sensor-switched light
for several days. It takes some
time to return to the correct value
■ Turn programme selector dial to 4
■ Use shrouds to define detection
zone precisely
■ Use shrouds to define detection
zone precisely
■ Adjust detection zone or install in
a different place
■ Use shrouds to define detection
zone precisely