What is the most common fridge failure?

The most common fridge failure overall is ice maker and water dispenser failure, followed by fridge not cooling properly due to defrost system failure that causes evaporator coils to ice over. Ice maker failures account for about 25 to 30 percent of all refrigerator service calls, with symptoms like ice maker not making ice, making small or hollow cubes, leaking, or dispenser not dispensing water. This is caused by frozen water inlet tube, failed water inlet valve, clogged water filter not replaced every 6 months, or faulty ice maker module. The second most common failure is refrigerator compartment warm while freezer still cold, which indicates defrost system failure where defrost heater, thermostat, or control board fails and frost builds up on evaporator coils blocking airflow to fridge. This costs 200 to 400 dollars to repair. Third is evaporator fan motor failure that stops circulating cold air, costing 150 to 250 dollars. Fourth is condenser coils dirty causing compressor to overheat and shut off, which is prevented by vacuuming coils every 6 to 12 months. Fifth is door gasket failure causing warm air infiltration and frost. Sixth is compressor start relay failure where fridge clicks but does not start cooling, costing 30 to 80 dollars. Regular water filter replacement, coil cleaning, and ensuring doors seal prevents most common fridge failures.