This is something I didn't notice until year two when it was out of warranty. My Dometic fridge won't cool on propane. It works fine on AC. But on propane it just sits at the ambient temperature. I brought it to a reputable RV shop twice, would have cheerfully paid to get it fixed. First time they "serviced" it and said it worked fine. Brought it home and it did the same thing - lit and just stayed at whatever temperature it was at. Second time they claim they spent an hour on it and even called Dometic for advice. Conclusion? Fridge is pooched for "unknown" reasons. Solution? Replace fridge. $1000+. This year I replaced the propane regulator thinking that might be it. Fired the fridge and up and let it run overnight. Came home from work the next day to find the fridge at 74F while ambient temp was 84. So it was cooling a *little* bit. On the advice of a Youtube video I took the cover off the burner and "tapped" on the chimney to release soot. Blew the whole thing out using my air compressor, then fired it up again..... now it's not cooling at all. Temp just rose up to low 80s and it looks like it's going to sit there all night. We'll see. Very frustrated. Any tips before I hack this thing out and by a fancy rotomold cooler instead??