Troubleshooting Common Causes for a Fridge Not Cooling
When your refrigerator stops cooling, it doesn’t always mean you need a brand-new appliance. Often, the issue is caused by a specific component that has worn out or become obstructed. Understanding these parts can help you decide whether to attempt a fix yourself or call in a professional.
Checking the Condenser Coils
One of the most common reasons for a cooling failure is dirty condenser coils. These coils are responsible for dissipating heat as the refrigerant passes through them. If they are covered in dust, pet hair, or kitchen grease, they cannot release heat efficiently, forcing the compressor to work harder and longer. You should clean these coils every six months using a vacuum or a dedicated coil brush.
Testing the Evaporator Fan Motor
The evaporator fan is located behind the freezer’s back panel. Its job is to draw air over the cooling coils and circulate it throughout both the fridge and freezer compartments. If you hear an unusual squealing or chirping noise, or if the freezer is cold but the fridge section is warm, the fan motor may be failing. You can check the fan blade for obstructions, but if the motor is seized, it must be replaced.
Inspecting the Start Relay
The start relay is a small device plugged into the side of the compressor. It provides the initial “kick” to get the compressor running. If the relay is defective, the compressor may not start at all, or it might result in a clicking sound followed by silence. You can test the relay for continuity with a multimeter, or physically shake it; if it rattles like a box of broken glass, it is likely burnt out internally.
Temperature Control Thermostat
The thermostat directs voltage to the compressor and fan motors. If the thermostat is faulty, it may not signal the cooling system to turn on. To test this, rotate the dial from the lowest setting to the highest. You should hear a distinct “click” as the thermostat engages. If it doesn’t, or if the contacts show no continuity when tested, a replacement is necessary.
If your unit is still struggling to maintain the correct temperature, you may need help troubleshooting temperature control issues. For more appliance repair resources, feel free to browse our latest guides.