8
Maintenance / Repair
Faults
102
Building Technologies
A6V10334410_h_en_--
Fire Safety
2015-09-29
8.11.1
Table of faults
Fault/problem
Possible cause
Remedy
The aspirating smoke detector is not detected by
the fire control panel
Order not observed when switching
on/starting
Switch the detector line off.
Switch the aspirating smoke detector's
external power unit on.
Then restart the detector line.
Airflow indicator is not moving from the yellow
area to the green one. Current airflow is above
the upper limit value.
Hole or crack in the pipe system
Check the pipe system for damage, e.g.,
cracks, holes, loose connections between
the pipes and fittings.
Airflow indicator is not moving from the yellow
area to the green one. Current airflow is below
the lower limit value.
Pipe system blocked
Blow out the pipe system.
LED flashes. The other indicators light up green.
Localization is underway on the fire
control panel
End localization on the fire control panel.
LED flashes
Test mode active
Deactivate test mode on fire control panel
LEDs flash at the same time
Hardware defect on the airflow sensor
Replace the aspirating smoke detector.
Topmost or bottommost LED flashes
Airflow has reached the configured
tolerance limit (typically ±20 %).
Check the pipe system for damage, e.g.,
cracks, holes, loose connections between
the pipes and fittings.
Blow out the pipe system.
Normalize the aspirating smoke detector.
