Hi all. I have a 2010 Thetford 3way fridge ( can't see which model it is unfortunately). It ignites on gas ok ,runs for about an hour and then stops and shows fault 9. It wont then re ignite even by turning it off and on again. If I leave it a while, presumably till it cools down it will then re ignite once turned off and on again. It then goes fine until the same thing happens ,every time. Anyone had this and know what is wrong?