We've got an Ezetil three way fridge and it has also stopped working on gas. We tried turning it upside down, have made sure it is dead level and even had it in for repair/service. It worked for a week after this and then died again and hasn't worked since. We were lucky to have EHU that trip so could switch over but we often camp without EHU. I have read on other forums that most three way fridges eventually stop working on gas. Very sad.