How to Bypass a Refrigerator Compressor Relay: A Simple Guide

A refrigerator is an essential appliance in every household. It helps to keep our food and beverages fresh and cool. However, like any other machinery, refrigerators can also experience problems from time to time. One common issue that you may encounter with your refrigerator is a faulty compressor relay. The compressor relay is a device that controls the flow of electricity to the compressor, which is responsible for cooling the refrigerant. When the relay fails, it can prevent the compressor from running, leading to a warm refrigerator and spoiled food. In this article, we will discuss how to bypass a refrigerator compressor relay, providing you with a simple guide to troubleshoot and fix the issue.

Understanding the Compressor Relay

Before we dive into the process of bypassing the compressor relay, it’s important to understand what it does and how it works. The compressor relay is a small component located on the back of the refrigerator. Its primary function is to send an electrical signal to the compressor, instructing it to start or stop running. The relay acts as a switch, controlling the flow of current to the compressor motor.

Identifying a Faulty Compressor Relay

When there is a problem with the compressor relay, you may notice some common signs. These include the refrigerator not cooling properly, a clicking sound coming from the back of the fridge, or the compressor not turning on at all. It’s important to note that these symptoms can also be caused by other issues, so it’s necessary to troubleshoot and confirm if the relay is the culprit.

Troubleshooting the Compressor Relay

To determine if the relay is faulty, you will need to perform a few simple tests. Firstly, unplug the refrigerator from the power source. Next, locate the compressor relay, which is usually found near the compressor at the back of the refrigerator. Once you’ve located it, remove the relay from its socket. You can do this by gently pulling it straight off, using caution not to damage any surrounding components.

Visual Inspection

After removing the relay, visually inspect it for any signs of damage or burning. A burnt or charred appearance indicates a faulty relay. Additionally, check the wires connected to the relay for any signs of loose connections or fraying.

Continuity Test

To perform a continuity test, you will need a multimeter. Set the multimeter to the resistance or continuity setting and touch the test leads to the relay terminals. If the multimeter shows a reading of zero or infinite resistance, it means the relay is faulty and needs to be replaced.

Bypassing the Compressor Relay

Now that you have confirmed a faulty compressor relay, it’s time to bypass it to get your refrigerator up and running. Bypassing the relay essentially means bypassing the switch that controls the flow of current to the compressor. Here is a simple guide to bypass the compressor relay:

Gather the Necessary Tools

Before you start the bypassing process, ensure you have the following tools:

1. Screwdriver (to remove panels or access the relay)
2. Wire cutters and strippers
3. Electrical tape
4. Wire nuts
5. Jumper wire or a piece of copper wire

Preparing for Bypassing

To begin, unplug the refrigerator from the power source. Locate the compressor relay and remove it from its socket, similar to the troubleshooting step mentioned earlier. Take note of the wire connections to the relay to maintain proper wiring during the bypassing process.

Disconnecting the Relay

Using wire cutters or strippers, carefully cut the wire connections leading to the relay. Ensure you leave enough wire length to work with during the bypassing process. Once the wires are cut, use electrical tape to insulate the exposed wire ends to prevent any potential electrical hazards.

Creating the Bypass

Now, take the jumper wire or a piece of copper wire and strip both ends. Connect one end of the wire to the terminal where the incoming power wire was connected before it was cut. Next, connect the other end of the wire to the terminal where the wire leading to the compressor was connected. Ensure the connections are secure and tight.

Securing and Testing the Bypass

Once the bypass connections are made, use wire nuts to secure the wire connections and prevent any accidental short circuits. After ensuring the connections are properly secured, plug the refrigerator back into the power source. Listen for the compressor to turn on, indicating a successful bypass. Check the refrigerator’s temperature to ensure it is cooling properly.

Conclusion

While bypassing a faulty compressor relay can help get your refrigerator running again, it is important to note that this solution is temporary. Bypassing the relay should only be used as a temporary fix until a replacement relay can be obtained and installed. It is recommended to consult a professional technician to diagnose and repair any issues with your refrigerator. Remember, safety should always be a priority when working with electrical appliances.

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