Open the fridge and check the temperature knob or cooling setting. Make sure it is set to medium or slightly colder. Sometimes the setting gets reduced by mistake, which makes the fridge run but not cool properly.
Close the fridge door fully and check if it shuts tightly. If the door is slightly open or not sealing properly, cold air escapes and the fridge will not cool well.
If the fridge is packed too tightly with food, cold air cannot move properly inside. Remove extra items and leave some space between food so air can circulate.
Pull the fridge slightly away from the wall and look behind it. If the back grill is covered with dust, the fridge may not cool properly. Clean the dust gently with a dry cloth or soft brush.
Close the fridge and let it run for 20 to 30 minutes. Then open it again and check if the inside feels cooler. If cooling is still weak, technician support may be needed.
Keep the fridge door closed properly, avoid overfilling, and clean the back side regularly for better cooling.