Federal Signal Premium Vision SL - Pods 5, 6, and 7 no light

[Sonador]

Hey all,

I've got an FS Premium Vision SL halogen lightbar with matched controller and amplifier. It's been working ace for quite some time, but last night, I lost light on pods 5, 6, and 7. See below for clarification. The mirrors still rotate and orient properly, when in positions the flash patterns they make are correct and aligned, but the bulbs will not come on. Checked the boards in the lightbar for loose connections, all are snug, pod wiring is secure, and replaced all three bulbs to no avail. Have a new bar mainboard on order as well as a full parts bar and amplifier (I'm upgrading the signalmaster to LED and trading out some tired pods), would appreciate if anyone has a recommendation on where to start looking.



(Not my bar, obviously, but an indicator as to which pods have no light, if anyone happens to know the wiring and circuit function of one of these well) Any help is appreciated. Thank you.

 

[Sonador]

Hey, I solved this issue on my own, but for those googling this later on (if there are any):

- Check both fuses on the relay board. One of mine was blown.
- I also blew a MOSFET, which in turn blew a fuse. The bulb on pod 6 is now on whenever there's power to the bar, so that'll need replacing.