If your Samsung refrigerator is running but not cooling, start with simple airflow checks. Make sure the fridge and freezer vents are not blocked by food, confirm the temperature settings were not changed, and leave enough clearance around the appliance for heat to escape.

Next, look for frost buildup on the freezer back panel, a quiet evaporator fan, or a condenser fan that is not moving. These symptoms can point to airflow, defrost, sensor, or fan motor issues. Dirty condenser coils can also make the compressor work harder and reduce cooling.

Book service if the fridge temperature keeps rising, the compressor clicks repeatedly, the freezer is cold but the fresh-food section is warm, or water and ice functions stop working at the same time. A technician can test the fan motors, sensors, defrost circuit, control board, and sealed-system performance.