Ours hasn't worked for years. We just use those freezer blocks to keep it cool in the fridge. Plus any meat we take frozen.
We can last like this for about 4 days of grid. When at meets Annie kindly helps us out.
Anyway getting back to the fridge. Although it is a 3 way fridge when on gas,although we had a good gas light it did not cool down. In fact the fridge ran hot. What is going on?
Like others have said its going to be a bu**er to get out.
If you look INSIDE the fridge there might be a little viewing window to see the flame,
& of course it should be burning BLUE if all ok
But I can see from the colour of your exhaust that yours might be more yellow at a guess
Look Zombie has an arm in his fridge