Domestic 3804 Not Cold On Gas

Thanks for all the replies. General consensus is the fchimney needs to be cleaned. The dometic manual says the burner needs to be centrally located under the flue. Biscuit, you said it can't be touching the sides. My flame looks like that, but I would say it needs to move right about an 1/8 in. I've looked in there, and don't see any sideways adjustment. I do see screws with a slot that the circuit board is stewed to, but loosening 3 does nothing, I'm thinking there's one more behind the orifice assembly, or better yet, can anyone tell me how to slide the burner over?. Pulling the fridge out right now is prolly not gonna happen. Have a trip planned for next week, in the process of finding styrofoam coolers that will fit in the fridge. Lol.