Code 3 Excalibur - Manual (Page 20)

20
STROBE OPTION
TROUBLESHOOTING GUIDE
PROBLEM
Light heads do not
fire.
Only front strobes
flash.
Led module
won't Dim
CAUSE
a. Harness that connects power
supply to strobe head has loose
connections or damaged
harness.
b. Faulty strobe Lighthead.
c. High voltage shorting to ground
(earth) through harness.
a. GRN/BLK control wire connected
to +12VDC overrides other
modes.
a. Check all connections.
Check harness by switching harness with functioning
strobe head.
Replace harness.
b. Check with known good Lighthead.
c. Isolate shorted harness by disconnecting one at a time.
Replace harness.
a. See "Strobe Lighting Connections" section.
Reconnect switching.
Troubleshooting
All Excalibur
®
Strobe Lightbars are thoroughly tested prior to shipment. However, should you encounter a problem during installation
or during the life of the product, follow the guide below for information on repair and troubleshooting. Additional information may be
obtained from the factory technical help line at 314-426-2700 ext. 2131.
NO STROBE LIGHTS IN THE LIGHTBAR OPERATE - Check the following: 1) +12 VDC source connection for the control switch
box and any in line fuse 2) Connection of the RED and RED/BLK wire at the control switch box 3) Check the 15 Amp ATO fuse on
each power supply. If the fuse is blown, replace it with another 15 Amp fuse and test the lightbar. If the fuse continues to blow,
return the power supply only, NOT the entire lightbar, to the factory for service. For instructions on power supply removal see the "
Electronics Module Removal " section of this manual.
Do not replace the fuse with one of a higher rating. This will damage the power supply and void all
warranties.
WARNING!
!
ONE STROBE LIGHT MODULE DOES NOT OPERATE - Check the defective strobe light module by switching it with a module that
is known to be working.
SOLUTION
a. White wire on module not connected
to a +12V source.