Timeguard MLWTS - Manual (Page 10)

PROBLEM
• 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
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 lamp holder.
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.
In the unlikely event of this product becoming faulty due to defective material
or manufacture within 3 years of the date of purchase, please return it to your
supplier in the first year with proof of purchase and it will be replaced free
of charge. For the second and third years or any difficulty in the first year
telephone the helpline on 020 8450 0515.
Note: A proof of purchase is required in all cases. For all eligible replacements
(where agreed by Timeguard) the customer is responsible for all shipping/
postage charges outside the UK. All shipping costs are to be paid in advance
before a replacement is sent.
5 YEAR
GUARANTEE