Troubleshooting a TCL refrigerator that is not cooling properly involves a few steps to identify and possibly fix the issue. Here’s a comprehensive guide:

1. Check the Basics

• Power Supply: Ensure the refrigerator is plugged in properly and the outlet is functioning. Check for any tripped circuit breakers or blown fuses.
• Temperature Settings: Verify that the temperature settings are correct. The refrigerator compartment should be set between 37-40°F (3-4°C) and the freezer around 0°F (-18°C).

2. Inspect the Door Seals

• Gasket Condition: Examine the door seals (gaskets) for any signs of wear, tears, or gaps. A damaged seal can let warm air in, reducing cooling efficiency.
• Seal Tightness: Close the door on a piece of paper and try to pull it out. If it slides out easily, the seal may be faulty and require replacement.

3. Ensure Proper Airflow

• Internal Airflow: Avoid overloading the refrigerator, as this can block vents and hinder air circulation.
• External Clearance: Make sure there's enough space around the refrigerator for proper ventilation. Typically, a few inches of space on all sides and the back is recommended.

4. Clean the Coils

• Condenser Coils: Dust and debris on the condenser coils can reduce cooling efficiency. Unplug the refrigerator and clean the coils, typically located at the back or underneath the unit, using a vacuum or brush.

5. Check the Thermostat

• Thermostat Functionality: Ensure the thermostat is functioning properly. If it’s set correctly but the temperature isn’t right, it might need to be tested and possibly replaced.

6. Examine the Evaporator Fan

• Fan Operation: Listen for the evaporator fan running when the door is closed. If it’s not running, it could be defective and need replacement.
• Fan Blockage: Ensure there’s no ice or debris obstructing the fan.

7. Inspect the Compressor

• Compressor Noise: The compressor should make a low humming sound when it’s running. If it’s making unusual noises or not running, it could indicate a problem.
• Compressor Heat: The compressor should be warm, not hot. Overheating could indicate an issue.

Tips

• Regular Maintenance: Regularly clean the refrigerator and perform basic maintenance to prevent issues.
• User Manual: Refer to the refrigerator’s user manual for model-specific troubleshooting steps and recommendations.