3. Low Refrigerant Levels
Refrigerant is a cooling agent that absorbs heat and leaves cool air behind when passed through a compressor and evaporator. It changes from a liquid to vapor or gas state as it goes through the refrigeration process. It is responsible for absorbing heat from inside the fridge and transferring it outside. If there’s a leak in the refrigerant system or if the levels are insufficient, your fridge won’t be able to cool properly. Signs of low refrigerant levels include reduced cooling capacity and ice buildup on the evaporator coils. A qualified technician can locate and repair any leaks in the system, recharge the refrigerant, and ensure proper pressure levels to restore your fridge’s cooling performance.
4. Defective Defrost Timer or Thermostat
The defrost timer and thermostat work together to regulate the defrost cycle in your fridge. If either of these components malfunctions, it can lead to excessive ice buildup on the evaporator coils, obstructing airflow and preventing proper cooling. Test the defrost timer by manually advancing it until the compressor turns off. If the defrost heater activates, the timer is likely working correctly. Similarly, test the thermostat for continuity using a multimeter. Replace any defective components to restore proper defrosting and cooling operation
