Bosch TriTech - 8 Troubleshooting; 8.1 Detector does not appear to respond to motion; 8.2 Detector is in continuous alarm; 8.3 Detector appears normal but does not send alarms to the control panel

38 en | Troubleshooting
Commercial Series TriTech and TriTech AM
detectors
2022.01 | 01 | F.01U.401.708
Installation manual
Bosch Security Systems B.V.
8 Troubleshooting
This section includes trouble conditions and the potential causes.
8.1 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
– The detector is in Set (armed) status
i
Notice!
Some regulations require that you disable the LED after the walk test.
8.2 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
8.3 Detector appears normal but does not send alarms to the
control panel
Potential causes
– Incorrect alarm loop resistance configuration
– Incorrect alarm loop wiring
8.4 Detector does not appear to detect motion in the space
directly under it
Potential causes
– The look-down zone is disabled
– MW Crosstalk: two devices or more are installed very close to each other (<3 ft) or are
facing each other (<20 ft).
8.5 Motion detector does not appear to detect motion near the
edge of the coverage area
Potential causes
– Microwave range too short
– Mounting height does not meet the recommendation listed in this document
– Level alignment does not meet the requirement noted in this document
– C
2
DT sensitivity too low