Unit does not switch ON.
– Wrong twilight setting selected.
• Reset twilight setting.
– Mains switch OFF.
• Turn on mains switch.
– Fuse not switched ON or faulty.
• Switch ON fuse.
• Change faulty fuse.
– Rapid movements being suppressed to minimise mal-
functioning, or detection zone too small or incorrectly
defined.
• Check and adjust detection zone.
– Light source faulty.
• The light source cannot be changed. Completely
replace unit.
Unit does not switch OFF.
– Continued movement within the detection zone.
• Check detection zone.
• If necessary, limit or change detection zone.
Unit switches ON when it should not.
– Floodlight not mounted for detecting movement reliably.
• Securely mount floodlight.
– Movement occurred but not identified by the observer
(movement behind wall, small object moving in immedi-
ate proximity of lamp etc.).
• Check detection zone.
• If necessary, limit or change detection zone.
– 65 –
GB
Contents