RV fuse replacement question

[SlimPickins]

Hey all,
Our motion light went out in our pantry. It’s is a simple motion switch with 12v and then out to the LED strip. Used multi-meter and no juice to the switch. Checked fuse box and red LED indicated blown 15A fuse. I pulled it and it is blown. No other lights or anything are not working. Question: do I need to turn off all power to my rig to replace it? I attempted to attach a pic of my fuse box.

[JFlightRisk]

No need to remove all power. Pull the blown fuse out, and push in a new one, while watching to see if the new one blows immediately. if it does, there's an electrical issue causing it. If it doesn't blow, you're back in business.

[SlimPickins]

Thanks

[JimD]

I agree with the above but want to add something. Before replacing the fuse make sure the switch is turned off. If the fuse blows with the switch off you most likely have a problem in the wiring to the switch or there is something else in the circuit that the fuse protects.

If the fuse doesn't blow then flip the switch and see if it blows then. If it does then the problem is after the switch meaning in the wiring or the actual device.