Timeguard SLW45 - Manual (Page 9)

SECTION SIX
TROUBLESHOOTING GUIDE
PROBLEM
❏ Lamp stays ON all the time
at night.
❏ PIR keeps activating for no
reason / at random.
❏ PIR sensor will not operate
at all.
❏ The PIR sensor will not
operate at night.
❏ Unit activates during the
daytime
❏ PIR coverage is
poor/sporadic
❏ Detection range varies from
day to day
SOLUTION
The unit may be suffering from false activation. Cover the
sensor lens completely with a thick cloth. This will prevent
the sensor from "seeing" anything. If the unit now
switches off after the set time duration and does not re-
activate, this indicates that the problem was caused by
false activation. The problem may be solved by slightly
adjusting the direction/angle of the sensor head (see
previous section).
You may not be allowing the unit time to complete it's
warm-up period. Stand well out of the detection range and
wait (the warm-up period should never exceed 5 minutes).
Occasionally, winds may activate the sensor. Sometimes passages
between buildings etc. can cause a "wind tunnel" effect.
Ensure the unit is not positioned so as to allow detection of
cars/people using public thoroughfares adjacent to your property.
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 as per the diagram (see previous section 3).
Ensure no connections are loose.
Check the lamp. If the lamp has failed, replace. Ensure that
the lamp is seated correctly in the lampholder.
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.
The level of ambient light in the area may be too dark for
the current DUSK setting. During daylight, adjust the DUSK
control slightly anti-clockwise. When the lamp load
extinguishes, enter the detection area. If the PIR still
activates, the setting is still too high. Repeat the above
procedure until the PIR does not activate when you enter
the detection area. Refer to previous section for more
details.
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.