Siemens FDA241 Technical Manual page 103

Fault/problem
LED lights up
Topmost or
bottommost LED
flashes
Building Technologies
Fire Safety
Possible cause
Additional deviation in the airflow outside
the set limit parameters.
If connected to FDnet/C-NET:
Following an alarm, flashing LED alarm indicators
on the aspirating smoke detector can only be reset via the fire control panel/fire
terminal.
See also
 Fault analysis [➙ 104]
 LED and buzzer test [➙ 89]
Maintenance / Repair
Faults
Remedy
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.
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2015-09-29