ARB switch trouble

Lately I’ve noticed that my ARB switch isn’t lighting up. Today I moved the add-a-fuse from whichever one I had it on to the panel fuse (5A fuse) and the light still isn’t illuminating.

If anyone has any insight on this it would be greatly appreciated.

 

The bulb could be burnt out. Either light illuminate?

 

Neither light Illuminates

 

Grab your multimeter and check connections at the switch. Check for 12V on 6 and 0V on 7 and 8. Check the fuse in the add a fuse.

 

You should have at least 2 switches. 1 for compressor and 1 for a locker. Swap the switch out with a known good one to see if it's just the wiring. Could be just the bulb or the wiring.

 

Bold of you to assume he has a locker an doesn't just use it for airing up tires. But I agree if another switch is available swap it out to check.

 

I don’t have another switch. Only use it for airing up. Will check with a multi meter