26 en | Troubleshooting
Professional Series TriTech AM Motion Detectors
with Anti-mask, LSN
2018.10 | 01 | F.01U.352.414 Reference Manual Bosch Building Technologies
9 Troubleshooting
9.1 Detector does not appear to respond to motion
Potential causes
– Insufficient power
– Loose wires in the terminals
– Cabling or wiring error
– Defective unit
– Walk test LED is disabled
– Detector is not level vertically or horizontally
Notice!
Some regulations require that you disable the LED after the walk test.
9.2 Detector is in continuous alarm
Potential causes
– Mounting location does not meet the recommendations listed in this document
– Insufficient power
– Input loop continuity broken
– Incorrect alarm loop resistance configuration
– Defective unit
– Masking attempt detected
9.3 Detector appears normal but does not send alarms to the
control panel
Potential causes
– Incorrect alarm loop resistance configuration
– Incorrect alarm loop wiring
9.4 Detector does not appear to detect motion in the space
directly under it
Potential causes
– The look-down zone is disabled
9.5 Detector does not appear to detect motion in farthest coverage
area
Potential causes
– Microwave range is too short
– Verify that the correct detection range is selected in RPS
9.6 Detector LED flashes continuously
Potential causes
– Warm-up mode requires a certain amount of time with no motion in the area to settle the
PIR and microwave circuit
– Defective unit
– Detector indicates an alarm event stored in the memory during the last Armed (Set) mode
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