Troubleshooting
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Building Technologies
A6V10099835_a_en
Fire Safety & Security Products 12.2007
7 Troubleshooting
In this chapter information is provided in case the system indicates a fault or is not
in normal operating mode. The following table presents a listing of possible faults
with notes on possible causes.
Fault Cause/Solution
LED "Fault" flashes Technical failure in the system
Check whether another yellow LED is flashing
If no other yellow LED is flashing, contact the service
desk
LED "Mech. blocked" flashes Problem at mechanical blocking device
Check the position of the mechanical blocking device
(it must be either on “open” or “closed”)
If the position is O.K. contact the service desk
LED "Power fault" flashes Failure in the power supply
Check the external mains power fuse
If the power fuse is O.K., contact the service desk
Yellow zone LED flashes Problem in detector circuit:
Check whether all detectors are inserted in their bases
If all detectors are inserted, contact the service desk
LED "Loss of agent" flashes Loss of extinguishing agent detected:
Try to find out in which cylinder the pressure is too low
or has triggered the cylinder scales, before you
contact the service desk
LED "Earth fault" flashes
LED "System fault" flashes
LED "Horn/actuator" flashes
LED "Fire control" flashes
LED "RT-fault" flashes
LED "RT-alarm" flashes
LED "Peripheral fault" flashes
Other problem in the system:
Contact the service desk
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