Awning light

Since new, my LED awning light has only worked intermittently. Most of the time it just has a dull glow. Has anyone else experienced this. The dealer has yet to come up with a solution. If it has to be replaced, how difficult is this?

If it’s the same as mine it’s just fixed with screws, took me minutes to unscrew when I wanted to clean underneath.
Won’t the dealer be doing it though?
Edit.. just noticed you have a Stanton so probably a different light.

No external screws. I will have to look behind the control panel to see if any fixings are visible. 

The dealer is a 4 hour drive away from me, so often simpler to carry out work myself.

I just wondered if anyone else has experienced this on a new van. LEDs are supposed to have 1000s of hours of life, although not always the case in my experience. Of course, I have no way of knowing how much use it had while in stock with the dealer.