there is a thermal alarm usually goes off if the fridge is not cold, and they do get hot on the back thats how they work, turning off for around 10min would reset the alarm.
fridge settings work in reverse to freezer settings
1 for a fridge is almost freezing where it should be around 4
cold air sits at the bottom of the fridge so the setting will be colder in the crisper draw that at the top shelf
