Why Your Refrigerator Isn’t Cooling: 7 Possible Causes and What to Do

If your refrigerator is running but not cooling your food, that’s a serious issue. The cause can range from minor to something that requires professional repair. Below are the 7 most common reasons why your fridge might not be cooling properly.

1. Freon Leak

Freon (refrigerant) is what keeps your fridge cool. If it leaks, the system can no longer function efficiently.
Signs: Warm interior walls, compressor running nonstop.

What to do: Book a technician for inspection and Freon recharge.

2. Faulty Thermostat

The thermostat controls the temperature. If it’s broken, the compressor may not turn on at all.

Solution: Replace the thermostat.

3. Compressor Failure

The compressor is the heart of your fridge. If it fails, the cooling cycle stops entirely.

Solution: Professional compressor repair or replacement.

4. Clogged Capillary Tube

If the tube is blocked, the refrigerant can’t circulate through the system.

Solution: Technician will flush or replace the tube.

5. Faulty Temperature Sensor

If the sensor malfunctions, the system doesn’t “know” when to cool.

Solution: Diagnosis and sensor replacement if needed.

6. Control Board Malfunction

The electronic control board may send wrong signals or fail to start the compressor.

7. Drain Blockage and Ice Build-up

Ice or clogged drainage can block airflow and disrupt cooling.

👉 Need fast help? You can easily book a certified technician online 
We also recommend our commercial appliance repair specialists for businesses and food service locations.