Dometic Refridgerator not cooling on gas

[Bill.gonervn]

My Dometic fridge only cools on AC. The cooling unit was replacing along with a valve. It cooled for 2 days after the fix then quit. Using a heat gun the heat is the same for gas or AC. Also there is a fan that runs all the time. At least it sounds like a fan. Is this normal?

[RV Wizard]

gonervn, first let me welcome you to iRV2.com. We are glad to have you join us here. There could be several things that will not allow your refrigerator no work properly on lp gas mode. Since they pulled the refrigerator there will be a lot of air to get rid of in the line feeding the refrigerator gas valve; many tries at lighting will be required.
Was the burner assmy cleaned at the time the cooling unit was replaced. If not it may need it even though it is burning.
I am wondering if they forgot to install a baffle down in the chimney of the new cooling unit if it did not come with one. This is critical for proper lp gas operation. It hangs in the chimney on a small rod clipped to the top of the chimney.