In the summer, my GE refrigerator and freezer are both too warm.

In the summer, my GE refrigerator and freezer are both too warm. I’ve cleaned the coils (they weren’t dirty), we had a repairman replace some fitting (it was soldered on, something to do with gas). That fixed it up for a while, but this summer we ended up using the fridge to store grains and bread, the freezer as the fridge, and the small freezer in the basement.