Refrigerator Compressor Keeps Clicking On And Off

Introduction

If your refrigerator is making a clicking sound and not cooling properly, it’s likely the compressor is trying to start but failing. This “clicking” is usually the sound of the overload protector repeatedly cutting power to the compressor. A failing compressor can quickly lead to your food spoiling, costing you money and causing inconvenience. It’s crucial to troubleshoot this issue as soon as you notice it to prevent further damage and food loss. Explore more in our Refrigerator Problems 4 collection.

Common Causes of Refrigerator Compressor Keeps Clicking On and Off

Here are some of the common reasons why your refrigerator compressor might be clicking on and off:

• Overload Protector Failure: The overload protector is a safety device that shuts down the compressor if it overheats. If it’s faulty, it might be tripping prematurely.
• Starting Relay Issues: The starting relay helps the compressor get going. A bad relay won’t provide the necessary boost, causing the compressor to click without starting.
• Compressor Failure: The compressor itself could be failing. This is a more serious issue and often requires professional repair or replacement.
• Power Supply Problems: Inconsistent or insufficient power to the refrigerator can prevent the compressor from starting properly.
• Dirty Condenser Coils: Dust and debris on the condenser coils can restrict airflow, causing the compressor to overheat and shut down.
• Refrigerant Leaks: Low refrigerant levels can put extra strain on the compressor, leading to it overheating and clicking.
• Locked Rotor: The internal parts of the compressor might be seized or locked, preventing it from starting.
• Voltage Issues: Low voltage to the appliance can cause starting problems, making a compressor click.

Symptoms Checklist

Use this checklist to help identify if the clicking is truly related to the compressor struggling:

• Clicking sound coming from the back or bottom of the refrigerator.
• Refrigerator is not cooling properly or at all.
• The back of the refrigerator (where the compressor is located) feels excessively hot.
• Food inside the refrigerator is spoiling faster than usual.
• The clicking sound repeats every few minutes.
• The refrigerator light may still be working, even if the compressor is not.

How to Fix Refrigerator Compressor Keeps Clicking On and Off Step-by-Step Guide

Follow these steps to troubleshoot and potentially fix the issue:

1. Unplug the Refrigerator: Before doing any work, disconnect the refrigerator from the power outlet for safety.
2. Check the Power Outlet: Make sure the outlet is working by plugging in another appliance.
3. Inspect the Power Cord: Look for any signs of damage or fraying on the power cord. If damaged, it might need replacement.
4. Clean the Condenser Coils: Locate the condenser coils (usually on the back or bottom of the refrigerator) and clean them with a vacuum cleaner and brush attachment. Dust accumulation is a common problem.
5. Check the Overload Protector: The overload protector is typically a small, cylindrical component attached to the compressor. Visually inspect it for any signs of damage (bulging, cracks, or burnt smell).
6. Listen to the Compressor Area: Plug the refrigerator back in (briefly!). Listen for the clicking sound and any other unusual noises coming from the compressor area. Unplug it again immediately after.
7. Check the Starting Relay: The starting relay is another component often attached to the compressor. It’s typically housed in a small plastic casing. Consult your refrigerator’s repair manual (online or in print) for the exact location and how to test it. This often requires a multimeter, but visual inspection may reveal damage.
8. Check the Internal Temperature: Even with the compressor clicking, check the internal temperature of your fridge and freezer. Note how fast (or slow) the temperature is rising. This helps gauge the severity of the problem.
9. Defrost the Refrigerator: If you suspect ice buildup is causing problems, manually defrost the refrigerator completely. Unplug it and leave the door open for 24 hours.
10. Check the Voltage: If you have experience, use a multimeter to check the voltage supplied to the refrigerator outlet. If the voltage is significantly lower than the specified voltage, you should have an electrician check your wiring.
11. Reset the Refrigerator: Some refrigerators have a reset button. Consult your owner’s manual to see if your model has one and how to use it.
12. Observe and Wait: After completing these checks, plug the refrigerator back in and observe its behavior. Does it still click? Does it eventually start?

Fix the Issue Without Buying Parts

Before resorting to part replacements, try these free methods:

• Reset: Unplug the refrigerator for 30 minutes to reset the electrical system.
• Cleaning: Regularly clean the condenser coils to improve airflow.
• Inspect: Check the power cord and outlet for any visible damage.
• Defrosting: Perform a manual defrost to eliminate ice buildup.

When Replacement Might Be Necessary

If the clicking persists after trying the above steps, especially if you suspect a faulty compressor, overload protector, or starting relay, replacement might be necessary. A new overload protector or starting relay can cost between $20 and $50. Replacing the compressor itself is a more expensive repair, typically ranging from $300 to $700, including labor. Common parts that fail are the overload protector, starting relay, and, unfortunately, the compressor itself. For more related activities, check out our My Lg Refrigerator Is Not Making Enough Ice.

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 tools to avoid injury.
• If you’re unsure about any step, consult a qualified appliance repair technician.

Tools You May Need

• Screwdrivers (Phillips and flathead)
• Vacuum cleaner with brush attachment
• Multimeter (for testing electrical components – advanced users only)
• Pliers
• Gloves

FAQ

Here are some frequently asked questions about a refrigerator compressor clicking:

• Q: Why is my refrigerator clicking but not cooling? A: The compressor is likely failing to start, preventing the cooling process.
• Q: How can I tell if the compressor is the problem? A: If you hear a clicking sound from the compressor area and the refrigerator is not cooling, the compressor is likely the issue.
• Q: Can I fix a clicking refrigerator compressor myself? A: You can try the troubleshooting steps outlined above, but compressor repairs often require professional assistance.
• Q: Is it worth repairing a refrigerator with a bad compressor? A: Depending on the age and condition of your refrigerator, it might be more cost-effective to replace it.

Conclusion

Troubleshooting a clicking refrigerator compressor can seem daunting, but by following these steps, you can often identify and resolve the issue. Remember to prioritize safety and start with the simplest solutions first. If the problem persists, don’t hesitate to call a qualified appliance repair technician for professional assistance. You might be able to save your fridge and some money with a little DIY effort first!. Discover more free resources across our collection library.

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