3 way Electrolux Fridge not working

Hi Happy Campers / Caravanners I need to pick your brains.
Does anyone have any advice on 3 way fridges mine seems to have give up the ghost it isn't even trying to get cold on either 240v mains or gas...I have checked the gas is getting through and igniting and doesn't get cold and when I try it on mains hook up the 240v switch lights up and still doesn't get cold.

The fridge gasses should be well mixed as the last couple of trips out have included corrugated roads up here in Karratha.

I have occasionally fired my generator up whilst the fridge has been on Gas and cant guarantee that I had the 240 v switch turned off and I read in the manual once it stopped working this can cause problems but it didn't state why or what it causes
Any advice / help would be most appreciated as the nearest caravan fridge repairer are in Geraldton