If one side of your side-by-side refrigerator is not cooling properly while the other side and the freezer are working fine, there could be a few potential causes for this issue. Here are some troubleshooting steps you can follow to diagnose and possibly repair the problem:
Check the temperature settings: Ensure that the temperature settings on both the freezer and refrigerator sides are appropriately set. The recommended refrigerator temperature is around 37°F (3°C), and the freezer should be set to around 0°F (-18°C).
Clean the condenser coils: Over time, dust and debris can accumulate on the condenser coils, which can affect the refrigerator's cooling efficiency. Locate the coils (usually at the back or bottom of the fridge) and clean them using a brush or vacuum cleaner.
Check for proper airflow: Make sure there is enough space around the refrigerator for proper ventilation. Ensure that the vents inside the fridge and freezer are not blocked by items, allowing air to circulate freely.
Inspect the door gaskets: Check the rubber gaskets around the door to ensure they are sealing properly. Damaged or worn gaskets can allow warm air to enter the refrigerator compartment, causing cooling issues. Clean the gaskets and ensure there are no visible tears or gaps. If the gasket is damaged, consider replacing it.
Verify the evaporator fan: The refrigerator side relies on an evaporator fan to circulate cold air from the freezer section. If the fan is not working correctly, the refrigerator side won't cool adequately. Listen for the sound of the fan running when the door is open. If you don't hear it or suspect it's not working correctly, you may need to replace the fan motor.
Check the damper control assembly: Some side-by-side refrigerators have a damper control assembly that regulates the flow of cold air from the freezer to the refrigerator side. If this mechanism is faulty, the refrigerator side may not receive enough cold air. Inspect the damper control and replace it if necessary.
Test the defrost system: If the defrost system is malfunctioning, it can lead to a buildup of ice on the evaporator coils, reducing cooling efficiency. Check the defrost heater, defrost thermostat, and defrost timer (or adaptive defrost control) to ensure they are functioning correctly.
If you are not familiar with refrigerator repair or troubleshooting electrical components, it's best to seek assistance from a qualified appliance repair technician. They can diagnose the specific issue and make the necessary repairs to restore your refrigerator's proper cooling function on the affected side.