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Why is My Refrigerator Compressor Overheating?

 household refrigerator
Woman near her household refrigerator

The refrigerator's compressor is a vital component in maintaining the cold temperature inside your fridge. Think of it as the heart of your refrigerator, tirelessly working to keep your food fresh. It's responsible for compressing refrigerant, transforming it from hot gas into a cold liquid, a process that generates heat and warms up the compressor.

While some warmth in the compressor is normal due to its operations, excessive heat can indicate a problem. Here's when an overheated compressor becomes a concern:

  1. Unusual Noises: If your compressor is making loud or unfamiliar sounds, it might be overheating.

  2. Faster Food Spoilage: Food in your refrigerator spoils quicker than usual.

  3. Increased Energy Bills: You notice a significant rise in your energy consumption.

  4. Warm Refrigerator Interior: The inside of your fridge feels consistently warm instead of cold.

If you've observed an unusually hot compressor, it's crucial to pinpoint the cause. A local appliance professional can diagnose and address the issue effectively. In the meantime, here are some potential reasons for an overheating compressor and how professionals can resolve these problems.

Overloaded Compressor: An overloaded compressor results from it working harder than it should. This can be caused by:

  • Blocked airflow.

  • Leaks in the cooling system.

  • Internal design flaws.

To rectify this issue, our experts will:

  • Check and unclog or replace the evaporator or condenser coil to improve airflow.

  • Repair refrigerant leaks to reduce the compressor's workload.

  • Refill your refrigerator with refrigerant.

  • Repair or replace faulty components affecting the compressor's performance.

  • Thoroughly test your appliance to ensure optimal operation.

Poor Ventilation: If your compressor fails to ventilate the heat it generates, it can lead to overheating. Common issues related to poor ventilation include:

  • A jammed condenser coil.

  • A malfunctioning condenser fan motor.

  • A faulty compressor fan.

Our professionals will address poor ventilation by:

  • Cleaning the condenser coil if necessary to enhance airflow.

  • Verifying the condition of the condenser fan motor and compressor fan, and replacing them if damaged.

  • Examining the compressor to ensure it functions correctly, and repairing or replacing it if needed.

  • Refilling the refrigerator with refrigerant and conducting tests to confirm the problem's resolution.

Mechanical Issues: If your compressor experiences mechanical problems, it means one or more components are malfunctioning, hindering the appliance from cooling efficiently. These mechanical issues may involve:

  • Defective compressor parts like bearings, motor, and piston.

  • A malfunctioning or damaged compressor.

Our technicians will address these mechanical issues by:

  • Disassembling the compressor for inspection.

  • Replacing worn or defective compressor parts or the entire compressor unit when necessary.

  • Refilling the refrigerator with refrigerant, if the system has been opened for repairs.

  • Testing the appliance to ensure the proper functioning of the refrigerator and its components.

Electrical Issues: Electrical problems can sometimes be mistaken for mechanical ones. Signs of electrical issues include failures in components like the thermostat, wiring, capacitor, overload protector, or start relay.

Our experienced appliance professionals will tackle electrical malfunctions in a compressor by:

  • Testing the electrical components to identify faulty parts.

  • Repairing or replacing the malfunctioning part.

  • Refilling your fridge with refrigerant.

  • Ensuring the compressor functions effectively after the repair or replacement.



In conclusion, your refrigerator is the heartbeat of your kitchen, and when it falters, it can disrupt your daily routine. Don't let a malfunctioning refrigerator spoil your food or your day. Reach out to the experts at Professional Appliance Repair or schedule an appointment online for prompt and reliable refrigerator repair!"

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