ser num is SE4543791
The refrig is freezing everything from the milk on top shelf to the crispers at bottom. No issue on the Freezer. This seems to have been coming and going for the past 6 months or so. Just when we think of repairing it - it will strighten up and stop freezing food then days or weeks later it starts again. Seems like it might be the thermostat but not sure how to check it before I order. Thanks for any thoughts.

Lee