Pardon my ignorance as well because I don't know exactly what you will find---so let's just be ignorant together and not worry about it!
I think of burned out bulbs as usually being one at a time and that often just changes the speed of the clicking, so I am guessing it will be the flasher or relay as that is the thing that we hear clicking.
But the trouble is that they come in lots of different shapes and sizes and may be hard to find. Are you on a Ford chassis?
This is a link to some Ford turn signal flashers/ relays to get and idea of what to look for but then for location, I think of it being inside up under the dash in front of the driver as that is where we often hear it.
https://www.google.com/search?q=ford...hrome&ie=UTF-8
They can stick and stop clicking and that is what I'm guessing, so if you can find it, it is not hard at all to change as they just plug in. That's where my ignorance comes up way short as it may be in the fuse box inside or under the hood or it might be just hanging out by itself!
Maybe some clues here?
https://www.irv2.com/forums/f65/loca...er-339933.html
Somebody who has an Rv close to what you have may be along to give better help.
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Richard
Why no RV year, make and floorplan on MY signature as we suggest for others?
I currently DO NOT have one!