
Problem Reason Solution
Unit will not operate
during daylight Sensor not in daylight operation mode. Rotate LUX control fully clockwise.
Sensor false triggering Unit may be suering from false
activation.
Cover sensor unit with a black cloth for a period of 5 min to
check that the light does not trigger. Occasionally,winds and
draughts may activate the sensor. Sometimes passages between
buildings etc. can cause a "wind tunnel’’ eect.
Ensure the unit is not positioned so as to allow detection
of cars/people using public thoroughfares adjacent to your
property Adjust the sensitivity control accordingly to decrease
range of sensor or adjust direction of sensor head.
Sensor not turning o Sensor re-triggering
during operation.
Stand well out of the detection range and wait (the
warm-up period should never exceed 1minute), check for any
extra sources of heat or movement within detection area such
as animals, trees, light globes, etc. Adjust sensor head and
controls accordingly.
PIR will not operate at
night Too much ambient light.
The level of ambient light in the area may be too bright to allow
operation. Adjust LUX level control accordingly and remove any
other sources of ambient light.
PIR sensor will not
operate at all No power. Check that the power is switched ON at the circuit-breaker or
internal wall switch. Ensure that connections are not loose.
Unit activates during the
daytime
Low level of ambient
light or LUX level control set incorrectly.
The level of ambient light in the area may be too dark to allow
operation in Night-time only mode. Re-adjust the LUX control
accordingly.