Refrigerator Freezing

I tried to post this a while ago and did not see it come on so if it does soory for asking same question.

My refrigerator is freezing everything, even with control set to off.

Any suggestions?

The fridge gets its cold air from the freezer through a vent(damper) between the freezer and fridge.The fan in the freezer blows air through it. Make sure this fan is running. You may have to hold the door switch in for it to run. There is a flap you adjust with the fridge temp. control. Make sure it’s opening and closing when you adjust the fridge temp.
The problem could be the electronic control if you have one or the mechanical linkages.

We replaced the thermistor since this is the cheapest part. It was not the problem. What next?