i'd first check to see if the thing was properly plugged into the outlet. they can vibrate loose in some cases. then check the fuses/breakers at the converter (remember, you can't assume a fuse is good if it looks good, check it with your meter). if all is good in those places then use that meter to determine if power is getting to the fridge. if yes, then start thinking about replacing the electric element. widgetwizard's suggestion about dometic's repair manual is a great one...there's also most likely some youtube videos on troubleshooting you could refer to.