FTS 371 USER MANUAL
Flash Technology, LLC
Revision 4 – 9/7/2021
38
False alarm
1.
Check for correct alarm connections: normally open (NO) contacts close on
alarm, normally closed (NC) contacts open on alarm
2.
PCB1 failure
Lights do not flash
1.
Confirm that the BCN and/or MKR flash configuration settings are set to FL
(flashing) and not ST (steady)
2.
PCB1 failure
Lights operate continuously 1.
A photodiode is not connected at J4 terminals WHT+ and BLK-.
2.
The photodiode has failed
3.
PCB1 Failure
Beacon/marker alarm will
not reset
1.
Alarm can only be reset by a mode transition controlled by the photodiode
2.
Check the photodiode connections
