rv fridge

[skeeter@ccia.com]

Ok, I know this isn't about hunting but is my hunting camp fridge so to say....I find answers to everything else here on HC and figure will take a stab at someone knowing about dometic S620.013 rv refrigerators.....mine will cool on gas mode but when left on ac it will work for a day or so....then quit ....be off for few days...temp inside it will get like 80*....then out of nowhere it will come back on and cool....now the heat element is fine...the 12v battery is new.(know this is important to turn over to 110)...any suggestions would help...I been on the web searching and at rv garages too......I use it on 110 at camp so need to get er fixed....