Modern refrigerators like KitchenAid models have defrost systems that keep frost away quietly. We might forget this until we find an icy surprise when we open the fridge door. This usually means there is a defrost problem. The issue can come from different parts like the defrost timer, defrost heater, or defrost thermostat. Knowing how these parts function can help you figure out why ... https://kitchenaid-repairs.com/why-is-your-fridge-not-defrosting-properly/