The buildup of ice in the back of the refrigerator is a common issue and is usually caused by one of the following reasons:
Defective or Misaligned Door Seals: If the rubber door seals (also known as gaskets) around the refrigerator or freezer doors are worn out, damaged, or not properly aligned, warm air from the surroundings can enter the unit. This warm air meets the cold air inside the fridge, causing condensation and eventually leading to the formation of ice.
Frequent Door Opening: Frequent opening of the refrigerator or freezer doors allows warm, humid air to enter, and when the doors are closed, the moisture in the air can condense and freeze on the evaporator coils at the back of the fridge.
Temperature Settings: If the refrigerator's temperature is set too low, the cooling system may work excessively, causing frost to build up on the coils.
Faulty Defrost System: Modern refrigerators have a defrost system that is responsible for removing frost and ice buildup from the evaporator coils. If this system malfunctions, it can lead to excessive ice accumulation.
Poor Air Circulation: A malfunctioning or obstructed fan that is responsible for circulating air within the refrigerator can lead to uneven cooling and ice buildup.
Refrigerator Overloading: Overloading the refrigerator with too much food can impede proper air circulation, leading to uneven cooling and potential ice formation.
High Humidity Environment: If the environment where the refrigerator is located has high humidity levels, it can contribute to ice buildup.
To address the ice buildup issue, you can try the following steps:
Check and Clean the Door Seals: Inspect the rubber gaskets around the doors for any signs of damage or misalignment. Clean them regularly to ensure a tight seal.
Minimize Door Openings: Try to reduce the frequency and duration of opening the refrigerator and freezer doors.
Adjust Temperature Settings: Make sure the refrigerator's temperature setting is appropriate for your needs and the surrounding environment.
Inspect the Defrost System: If you suspect a faulty defrost system, it's best to have it checked and repaired by a qualified technician.
Organize the Refrigerator: Organize the items inside the refrigerator to allow for better air circulation.
Check the Fan: Ensure that the cooling fan is functioning correctly and not obstructed.
If the problem persists despite trying these solutions, it's advisable to consult a professional appliance technician to diagnose and fix the issue.