Maintenance
Doc. no. MA007828_00
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EN
ing a presence or if the set switch-off delay time is running. The detector
then works according to the set program.
9
Maintenance
The detector does not contain any components that require maintenance.
The device can only be replaced as a complete unit.
9.1 Cleaning
CAUTION!
Using the wrong cleaning products will damage the device!
Use a lint-free cloth that is either dry or dampened with water.
9.2 Troubleshooting
Fault
Cause/solution
Lighting is off
• Ambient light level is above the preset
switching value.
• Lighting has been switched off manually.
• The switch-off delay time setting is too
short.
Lighting is switched
off during darkness
despite the presence
of persons.
• Ambient light level is above the preset
switching value.
• Lighting has been switched off manually.
• Detector sensitivity is too low (see section
7.3.5)
Lighting does not
switch off or lighting
switches on spontane-
ously when no per-
sons are present.
• The switch-off delay time has not yet
elapsed.
•
There are moving objects within the field of
detection, such as curtains next to an open
window, animals or plants.
• There are sources of thermal interference
within the field of detection, e.g. heating or
air-conditioning.
• The microphone sensitivity is too high.
Detector is not re-
sponding.
• Lack of power supply; check the mains
voltage.
Problem solving
