Both sides are either too cold or too warm
First noticed freezer had defrosted. Food was defrosted and water was everywhere. Then noticed fridge side was also too warm. We cleaned coils. We adjusted dials to coldest on both sides. Both sides became too cold. Food in fridge froze. We did the reset of turning dial to off and back on. Several times over the course of time. Each time we adjusted the controls to a moderate setting, both sides became too warm. Each time we adjusted dial to maximum cold, both sides become too cold. We adjusted in small increments with the same extreme cold or warm result. What can cause this?