RV Repair: Lp gas wont stay on on Dometic Fridge, dometic fridge, gas switch

Question
My Dometic fridge runs great on AC/DC but won't stay on with the LP gas.  I have cleaned the orifice and the burner and blew out the flue.  The flame is blue and the right height and I replaced the thermocouple.  What else can I do?  All my other LP appliances run great.

Answer
Lynda, I will need to know the model of refer you have. If it is one that has the buttons on the top eyebrow, and has on, and a manual/ gas switch, and when you try to go to L.P. you see a check light come on then I would say that chances are that the control board is bad and needs replaced. Be sure to check and see that power is going to the re- igniter to verify that it is working correct. If you give me a model number I can give you a better answer. Thanks, Bill