Is refrigerator full with food?
1. Cold air cannot circulate well.
1. Foods in front of the air outlet vent can disturb the air circulation.
How to fix
1. It is ideal to fill about 60% of refrigerator capacity.
2. This will facilitate the air circulation, and keep optimal temperature.
3. Increase of 10% in amount of stored food leads to a 3.6 percent increase in power consumption.
[Do not block the air outlet vent.]