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Navigator Lightbar
Installation, Operation, and Service Instructions
Table 10
Troubleshooting tips
Problem
Corrective Action
Lightbar does not light
✔
Check that the lightbar’s red power line (+BAT) and the
black ground-power line (–GND) are properly connected to a
good, fully charged 12-volt battery. Check the 40 A fuse.
✔
Ensure that the ground connection from the lightbar
controller to the aluminum extrusion is good.
✔
Check the fuses on the lightbar controller.
LED module does not light
✔
Swap the LED head/bracket assembly with a good module
to see if the board is bad.
✔
Check the connections of the cable that goes from the
lightbar controller to the LED ROC board.
✔
Ensure that Steady Burn switches on the lightbar controller
(SW3 PSR for the passenger side and SW3 DSR on the
driver side) are set correctly.
Half of an LED module does not light
✔
Replace the LED head/bracket assembly.
The lightbar turns off when the Flash
Takedown/Alley lights turn on
✔
Ensure that the vehicle battery is fully charged.
✔
Check that the lightbar’s red power line (+BAT) and black
ground-power line
(–GND) are properly connected to a good, fully charged
12-volt battery.
✔
Check the red power line (+BAT) and the black ground-
power line (–GND) connections in the lightbar and vehicle.
Replacing a Rotator Assembly
The rotator assembly comprises a reflector and circuitry that controls the flash pattern and the rotator stepper
motor. If the rotator appears to seize or the lighthead is inoperative or operates incorrectly, check the fuses and
connections between the lightbar and the battery. Also check the cable connection between the rotator PCB and
the controller or power distribution board.
To replace a rotator assembly:
1. Remove the rotator assembly:
a. Remove the dome as described in “Replacing a Dome or Bulkhead.”
b. Disconnect the 8-pin connector from the rotator PCB.
c. Remove the four #10 Type B Torx screws securing the PCB to the aluminum extrusion and remove the PCB.
2. Install the new rotator assembly:
a.
Center the holes in the rotator PCB over the holes in the aluminum extrusion.
b.
Insert and tighten the four Torx screws.
c.
Test the lightbar for proper operation
.
d.
Reinstall the dome(s).
Summary of Contents for Navigator Lightbar
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