Page 13 of 14
All 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 troubleshooting and repair information. If the problem cannot be rectified using the solutions given below,
additional information may be obtained from the manufacturer – contact details are at the end of this document.
LIGHTBAR AND CONTROLLER
PROBLEM
POSSIBLE CAUSE
SOLUTION
Does not function
Poor power or ground connection
If controller functions normally, or if a 12/24V control voltage is present on
either the Pattern 1 (brown) or Pattern 2 (orange) wires, then replace the
driver board in the lightbar.
If controller does not function, then check fuse, cables, and connections to
the lightbar and to the controller.
Blown fuse
Check wiring, replace fuse
One or two LED head do not flash,
but Pattern 1 or Pattern 2 indicator
LED on control module is on.
Open circuit wiring from control mod-
ule to LED head
Connect a known-good LED head to the problem output to ensure the con-
trol module is working correctly. Repair or replace.
Failed LED head
Replace LED head
LED head flashes dimly
Defective head or driver board
Check correct LED head
Incorrect flash patterns
Wrong flash configuration
Re-program the lightbar flash pattern for either Program 1 or Program 2, or
both.
Secondary pattern does not function Normal operation
Primary function overrides secondary function – turn off primary function
ALLEY / TAKEDOWN / WORKLIGHTS
PROBLEM
POSSIBLE CAUSE
SOLUTION
Light does not function
Defective light
Replace light
Defective controller
If indicator LED on controller is lit, then it is either the light, or the
cable to the light, or the driver board. Otherwise the controller is
defective.
STOP/TAIL/TURN
PROBLEM
POSSIBLE CAUSE
SOLUTION
Both/all lights do not function
Blown fuse
Check wiring, replace fuse
No power
Check to see if vehicle S/T/T lights function properly
Failed S/T/T LED head
Make sure that the S/T/T head is plugged into the S/T/T control board
and not the driver board. Replace S/T/T LED head and/or its cable.
Troubleshooting
