Problem
Possible solution
Control LED does
Is the circuit breaker in the
not light
distribution box switched on?
Is the main fuse OK?
The connected
Is the ambient light too bright?
lamp does not light
Is the lamp OK?
The connected
Are heat sources close by?
lamp lights
continuously
• Except where this can be performed manually, live
parts may be exposed when opening covers or re-
moving components. Connection points may also
be live. Before any adjustment, maintenance, re-
pair or replacement of components or assemblies,
if it is necessary to open the unit it must be dis-
connected from all voltage sources and circuits. If
adjustment, maintenance or repair is subsequent-
ly required on the opened unit while it is live, these
must only be performed by a specialist familiar
with the associated hazards and relevant regulati-
ons (VDE-0100, VDE-0701, VDE-0683).
• Capacitors within the unit can remain charged
even when the unit has been disconnected from
all current sources.
10
Maintenance
Other than the occasional cleaning of the case, operating elements
and (carefully) the lens dome, the PIR Switch requires no mainten-
ance. Under no circumstances may it be opened / dismantled. If
despite this the unit is opened, this voids the guarantee. To clean
the unit, use a clean, dry, lint-free, anti-static cleaning cloth.
Do not use any carbonaceous cleaning agents or
petrol, alcohol or similar for cleaning. These could
attack the surface of the case. Additionally, the fu-
mes are explosive and damaging to health. Do not
use any sharp-edged tools, screwdrivers, metal
brushes or similar for cleaning.
11