GE side by side intermittent temperature control problems in fridge and freezer

[Litchfield]

Model Number: PSF26NGNABB
Brand: GE
Age: More than 10 years

The temperature in GE side by side randomly decreases in my fridge so that it freezes produce in the drawer and on the shelves and increases the freezer part to about 4 degrees running that side warm. Resetting the temps to 0 and 37 keeps them there for a few days or somethimes longer but I never know when my lettuce, carrots, etc will be frozen. could it be the main board? Thanks.

[Doc Ryan]

Are you saying that if you set the refrigerator to 37 and 0 that those settings will change? Or just the temperatures are varying from what it is set at?