SECTION SIX
TROUBLESHOOTING GUIDE
PROBLEM
o
Lamp stays ON all the time at
night.
o
PIR keeps activating for no
reason / at random.
o
PIR sensor will not operate at
all.
o
The PIR sensor will not
operate at night.
o
Unit activates during the
daytime
o
PIR coverage is poor/sporadic
o
Detection range varies from
day to day
SOLUTION
Cover PIR lens with a thick cloth. If the light turns out, check
detection area for heat or reflective source.
If the light stays on, check wiring. See Section 3.
Reset unit. Leave for a maximum of 5 minutes. If light
activates, check area for false activation from heat or
reflective source.
Check that the power is switched ON at the circuit
breaker/internal wall switch.
Turn OFF the power to the unit and check the wiring
connections.
Check the lamp. If the lamp has failed, replace. Ensure that
the lamp is seated correctly in the lampholder. Please note
that the unit will not detect through glass.
The level of ambient light in the area may be too bright to
allow operation at the current DUSK setting. During the hours
of darkness, adjust the DUSK control slowly clockwise until
the lamp illuminates. Refer to previous section for more
details.
Adjust the setting anti-clockwise to lower the level of ambient
light required for activation.
Unit may be poorly located. See previous section - ‘Selecting
The Location’ and re-locate the unit.
PIR sensors are influenced by climatic conditions. The colder
the ambient temperature, the more effective the sensor will
be. You may need to make seasonal adjustments to the
sensor head position to ensure trouble-free operation all year
round.
SF-SA-180-D PIR HiLo 10A.qxd 16/05/2005 11:17 Page 9
