beautypg.com

Timeguard MLB3000 User Manual

Page 10

background image

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.

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).

Check LeD status:-

if a single LeD is constantly visible, the unit is in Manual

Override Mode and will illuminate until dawn or until

reset to Automatic Mode.

To reset to Automatic Mode, switch the internal switch/

circuit breaker off/on within one second.

Automatic Mode is indicated by scrolling LeDs from Left to

right.

if a single flashing LeD is visible, Holiday Mode has been

selected. Switch the internal wall switch/circuit breaker off/

on with one second and the unit will return to Automatic

Mode. The light will illuminate only when motion is

detected.

Automatic Mode is indicated by scrolling LeDs from Left to

right.

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.