Introduction
Is your refrigerator making a clicking noise and failing to keep your food cold? This is a common household problem that can lead to spoiled food and unnecessary expenses. The clicking sound usually indicates a problem with a component trying (and failing) to start, while the lack of cooling is a direct consequence of this failure. Addressing this promptly is crucial to prevent food spoilage and potential appliance damage.
💡 Technical Key Takeaways:
- Core Focus: Diagnostic schematic and terminal connection layout for Refrigerator Making Clicking Noise And Not Cooling.
- Target Scope: Field technicians, automotive DIYers, and residential/commercial electricians.
- Safety Rule: Always disconnect the primary power source/battery terminal and verify zero voltage with a multimeter before touching wires.
Common Causes of Refrigerator Making Clicking Noise and Not Cooling
Here are some of the most frequent reasons why your refrigerator might be making a clicking sound and not cooling properly:. For more related activities, check out our Water Leaking Inside The Refrigerator.
- Start Relay Failure: The start relay helps kickstart the compressor. If it’s faulty, it may click as it tries to engage the compressor without success.
- Compressor Issues: The compressor is the heart of the cooling system. A failing compressor can cause clicking noises and won’t properly circulate refrigerant.
- Condenser Fan Motor Problems: The condenser fan cools the compressor. If the fan motor is broken or obstructed, the compressor can overheat and cause clicking.
- Evaporator Fan Motor Problems: The evaporator fan circulates cool air inside the refrigerator. If this fan fails, the refrigerator won’t cool effectively, and a clicking noise could be present.
- Frost Buildup: Excessive frost on the evaporator coils can prevent proper airflow and cooling. The defrost system might be malfunctioning.
- Dirty Condenser Coils: Dust and debris on the condenser coils reduce their ability to dissipate heat, causing the refrigerator to work harder and potentially overheat.
- Overload Protector Tripped: The overload protector protects the compressor from overheating. If it trips, it cuts power to the compressor, and repeated attempts to start can cause clicking.
- Defrost Timer Malfunction: The defrost timer initiates the defrost cycle. If it’s broken, the refrigerator might not defrost properly, leading to frost buildup and cooling problems.
Symptoms Checklist
Use this checklist to help pinpoint the issue:
- Clicking sound coming from the back or bottom of the refrigerator.
- Refrigerator temperature is warmer than usual.
- Food is spoiling faster than normal.
- The compressor is not running.
- Ice cream is melting.
- Frost buildup on the back wall of the freezer.
- The refrigerator feels warm to the touch on the outside.
How to Fix Refrigerator Making Clicking Noise and Not Cooling Step-by-Step Guide
Follow these steps to troubleshoot and potentially fix the problem:
- Unplug the Refrigerator: Always disconnect the power supply before working on any appliance.
- Clean the Condenser Coils: Located at the back or bottom of the refrigerator, these coils dissipate heat. Use a vacuum cleaner with a brush attachment to remove dust and debris.
- Check the Condenser Fan: Ensure the fan blades are free of obstructions and that the fan spins freely. If it’s not spinning, the motor might be faulty.
- Listen to the Compressor: Place your ear near the compressor (usually at the back bottom). If you hear a clicking sound, the start relay or the compressor itself might be the issue.
- Inspect the Start Relay: The start relay is a small device attached to the compressor. Gently remove it and shake it. If you hear rattling, it’s likely faulty.
- Examine the Evaporator Fan: Open the freezer door and listen for the evaporator fan. If it’s not running, check for frost buildup obstructing the fan blades.
- Manually Defrost the Refrigerator: If there’s excessive frost buildup, unplug the refrigerator and leave the doors open for 24-48 hours to allow it to completely defrost. Place towels to absorb melting water.
- Check the Defrost Drain: The defrost drain is a small hole at the bottom of the freezer. Clear any clogs with a pipe cleaner or warm water to ensure proper drainage.
- Inspect the Door Seals: Ensure the door seals are clean and create a tight seal when the doors are closed. Replace them if they are damaged or worn.
- Check the Overload Protector: Located near the compressor, the overload protector should be tested with a multimeter for continuity.
- Reset the Refrigerator: After addressing potential issues, plug the refrigerator back in and observe its performance.
- Adjust Temperature Settings: Make sure the temperature settings are appropriate for your refrigerator model. Avoid setting the temperature too low, as this can cause excessive frost.
Fix the Issue Without Buying Parts
Before considering part replacements, try these free methods:
- Reset the Refrigerator: Unplug the refrigerator for 30 minutes and then plug it back in. This can sometimes reset the control board.
- Cleaning: Regularly clean the condenser coils and interior of the refrigerator to improve efficiency.
- Proper Loading: Avoid overpacking the refrigerator, as this can restrict airflow.
- Door Seal Maintenance: Clean the door seals regularly to maintain a tight seal.
When Replacement Might Be Necessary
If the clicking noise persists after trying the above steps, and the refrigerator is still not cooling, the compressor or another major component might be failing. Replacing the compressor can cost between $300 and $700, including labor. Other parts that commonly fail include the start relay ($20-$50), condenser fan motor ($50-$150), and evaporator fan motor ($50-$150). In some cases, especially with older refrigerators, replacement of the entire unit might be more cost-effective.
Safety Warning
- Always unplug the refrigerator before performing any maintenance or repairs.
- Avoid working on electrical components with wet hands or in damp areas.
- Be careful when handling sharp objects or tools.
- If you are uncomfortable performing any of these steps, consult a qualified appliance repair technician.
Tools You May Need
- Screwdrivers (Phillips and flathead)
- Vacuum cleaner with brush attachment
- Multimeter (for testing electrical components)
- Pipe cleaner
- Towels
FAQ
Here are some common questions related to this issue:
- Q: Why is my refrigerator clicking but not cooling?A: The clicking sound usually indicates a problem with the compressor, start relay, or overload protector preventing the compressor from starting.
- Q: How can I tell if the compressor is bad?A: If you hear a clicking sound but the compressor doesn’t start, and you’ve ruled out other issues, the compressor itself might be faulty. A professional can test it.
- Q: Can a dirty condenser coil cause the refrigerator to stop cooling?A: Yes, dirty condenser coils prevent proper heat dissipation, causing the refrigerator to work harder and potentially overheat.
- Q: Is it worth repairing an old refrigerator?A: It depends on the age and condition of the refrigerator, as well as the cost of the repair. If the repair is expensive and the refrigerator is old, replacement might be more economical.
Conclusion
Troubleshooting a refrigerator that’s making a clicking noise and not cooling can be a manageable task for a homeowner. By following these steps, you can potentially identify and resolve the issue without needing professional help. If, however, you are unsure or uncomfortable with any of the steps, contacting a qualified appliance repair technician is always a safe and recommended option.
Quick Wiring Specifications & Terminal Guide
| Component / Circuit | Standard Wire Gauge | Recommended Protection |
|---|---|---|
| Control & Trigger Signals | 18 – 20 AWG | 5A – 7.5A Inline Fuse |
| Standard Auxiliary Load | 14 – 16 AWG | 15A – 20A Circuit Breaker |
| Main Power Feed / Supply | 10 – 12 AWG | 30A – 40A Heavy-Duty Relay |
Images References
Looking for more diagnostic guides? Explore our complete Refrigerator Problems 5 section for step-by-step troubleshooting solutions.
