How to put freon in refrigerator?

How to put freon in refrigerator?


If your refrigerator is not cooling properly, it may be due to a lack of refrigerant, commonly known as Freon. Adding Freon to your refrigerator can help restore its cooling efficiency. In this article, we will guide you through the process of putting Freon in a refrigerator, ensuring that you can do it safely and effectively.

Understanding Freon and Refrigeration Systems

Before we delve into the steps of adding Freon to a refrigerator, it’s important to understand the basics of refrigeration systems and the role of Freon. Refrigerators work by removing heat from the inside and releasing it outside, creating a cool environment for food storage. Freon, or refrigerant, is the substance responsible for absorbing heat from the refrigerator’s interior and transferring it to the exterior.

Identifying the Type of Refrigerant

The first step in putting Freon in a refrigerator is to determine the type of refrigerant it uses. Older refrigerators typically use chlorofluorocarbon (CFC) refrigerants, such as R-12, while newer models use hydrofluorocarbon (HFC) refrigerants, such as R-134a. It’s crucial to identify the correct refrigerant type to ensure you use the appropriate Freon.

Gathering the Materials

Materials used:
– Appropriate Freon (R-12 or R-134a)
– Screwdriver
– Gloves
– Safety goggles
– Refrigerant charging hose
– Pressure gauge

Preparing the Refrigerator

Before adding Freon, it’s essential to prepare the refrigerator properly. Start by unplugging the refrigerator and allowing it to cool down completely. This step is crucial to prevent any potential accidents during the process. Additionally, ensure that the refrigerator is clean and free from any obstructions.

Locating the Access Valve

The next step is to locate the access valve on the refrigerator. This valve is usually located at the back of the refrigerator, near the compressor. It may be covered by a plastic cap that needs to be removed. Use a screwdriver to carefully remove the cap and expose the access valve.

Connecting the Refrigerant Charging Hose

Attach one end of the refrigerant charging hose to the access valve on the refrigerator. Ensure that the connection is secure to prevent any leaks during the process.

Adding Freon to the Refrigerator

Wearing gloves and safety goggles, carefully connect the other end of the charging hose to the Freon canister. Slowly open the valve on the canister to allow the Freon to flow into the refrigerator. Monitor the pressure gauge to ensure you do not overfill the refrigerator with Freon. Follow the manufacturer’s instructions regarding the appropriate amount of Freon to add.

Monitoring and Testing

Once you have added the required amount of Freon, close the valve on the canister and disconnect the charging hose from the access valve. Plug in the refrigerator and turn it on. Monitor the cooling performance over the next few hours to ensure that the refrigerator is functioning correctly. If the cooling does not improve, you may need to consult a professional technician.


Adding Freon to a refrigerator can help restore its cooling efficiency. By following the steps outlined in this article, you can safely and effectively put Freon in your refrigerator. Remember to identify the correct refrigerant type, gather the necessary materials, and take necessary safety precautions. If you are unsure about any step, it is always advisable to seek professional assistance.