How to jumpstart a refrigerator compressor?

How to jumpstart a refrigerator compressor?


Jumpstarting a refrigerator compressor can be a useful skill to have when faced with a malfunctioning appliance. The compressor is a vital component of a refrigerator, responsible for circulating refrigerant and maintaining the desired temperature. If your refrigerator fails to start, jumpstarting the compressor may help resolve the issue. In this article, we will explore the steps to jumpstart a refrigerator compressor effectively.

Understanding the Refrigerator Compressor

Before attempting to jumpstart a refrigerator compressor, it is essential to understand its basic functioning. The compressor is a motor that compresses the refrigerant, allowing it to absorb heat from the refrigerator’s interior and release it outside. It consists of various electrical and mechanical components, including a start relay, start capacitor, and overload protector.

Materials Needed

To jumpstart a refrigerator compressor, you will need the following materials:

1. Screwdriver: Used to remove the access panel and gain access to the compressor.
2. Multimeter: Used to test electrical continuity and diagnose potential issues.
3. Start relay: A replacement relay may be required if the existing one is faulty.
4. Start capacitor: A replacement capacitor may be necessary if the existing one is faulty.
5. Insulated gloves: Provide safety when working with electrical components.

Step-by-Step Guide to Jumpstart a Refrigerator Compressor

Step 1: Safety First
Before starting any repair or maintenance work, always unplug the refrigerator from the power source. This ensures your safety and prevents any electrical mishaps.

Step 2: Locate the Compressor
Remove the access panel located at the back of the refrigerator using a screwdriver. This will expose the compressor and its associated components.

Step 3: Test the Start Relay
Using a multimeter set to the continuity mode, test the start relay for any signs of malfunction. If the multimeter does not show continuity, the start relay may need to be replaced.

Step 4: Check the Start Capacitor
Similar to the start relay, test the start capacitor using the multimeter. If the capacitor fails the test, it may need to be replaced.

Step 5: Replace Faulty Components
If either the start relay or start capacitor is found to be faulty, replace them with new ones. Follow the manufacturer’s instructions for proper installation.

Step 6: Restart the Compressor
Once the faulty components are replaced, reassemble the access panel and plug the refrigerator back into the power source. The compressor should now start running. Listen for any unusual noises or vibrations that may indicate further issues.


Jumpstarting a refrigerator compressor can be a straightforward process if you have the necessary tools and knowledge. By understanding the basic functioning of the compressor and following the step-by-step guide, you can troubleshoot and resolve common issues. However, it is important to note that more complex problems may require professional assistance. Always prioritize safety and consult a technician if you are unsure or uncomfortable with the process.