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should freezer coils be frozen


Should Freezer Coils Be Frozen?


Freezer coils play a critical role in maintaining the optimal temperature inside a freezer. However, there is some confusion among homeowners about whether freezer coils should be frozen. In this article, we will clarify this issue and explain the function of freezer coils. Additionally, we will discuss the consequences of frozen coils and provide tips on how to prevent this problem. So, if you are interested in learning more about freezer coils and how to maintain them effectively, keep reading!

Understanding Freezer Coils

Freezer coils are an essential component of any freezer. These coils, made of copper or aluminum, are responsible for transferring heat out of the freezer and keeping the interior cool. They work in conjunction with the compressor and the refrigerant to regulate the temperature.

How Do Freezer Coils Work?

1. Absorbing Heat: Freezer coils contain refrigerant, a substance that easily absorbs heat. When the compressor initiates, the refrigerant inside the coils rapidly turns into a gas and begins to absorb heat from the freezer's interior.

2. Compressor Operation: The heated refrigerant gas is then compressed, raising its temperature even further. The high-pressure gas moves from the coils to the condenser, where it can release its heat into the surrounding environment.

3. Cooling Process: As the refrigerant releases heat, it starts to condense back into a liquid state. This liquid refrigerant moves through the expansion valve, which reduces its pressure. This sudden reduction in pressure causes the refrigerant to evaporate and cool down significantly.

4. Returning to the Freezer: Now in its cool gaseous state, the refrigerant returns to the freezer coils to absorb more heat, continuing this cycle until the desired temperature is achieved.

Understanding the Consequences of Frozen Coils

1. Reduced Cooling Efficiency: When freezer coils become frozen, their ability to absorb heat is severely hampered. As a result, the freezer's efficiency decreases, and it struggles to maintain the desired temperature. Food items may start to thaw, and ice cream might become frustratingly soft.

2. Increased Energy Consumption: Frozen coils force the compressor to work harder to compensate for the reduced heat transfer. This increased workload leads to higher energy consumption, resulting in higher electricity bills.

3. Potential Frost Build-Up: Frozen coils can cause excessive frost accumulation inside the freezer. This frost can negatively affect the freezer's storage capacity, making it difficult to organize and find items.

4. Compressor Strain: The continuous strain on the compressor due to frozen coils can lead to its premature failure. Replacing a compressor can be expensive, so it's essential to avoid this issue.

Preventing Frozen Coils

1. Proper Air Circulation: Ensure that there is ample space around the freezer for proper air circulation. Avoid placing the appliance in tight corners or overcrowded areas. Allow at least four inches of clearance on all sides of the freezer to promote better airflow.

2. Avoid Overloading: Do not overload the freezer with too many items. An overcrowded freezer can restrict airflow, leading to frozen coils. Organize the items efficiently and ensure there is enough space for the air to circulate.

3. Regular Defrosting: Regularly defrost your freezer to eliminate any frost build-up. Follow the manufacturer's guidelines for defrosting frequency. A manual defrost option usually requires defrosting every six months, while self-defrosting models do this automatically.

4. Proper Temperature Control: Set the freezer to the manufacturer-recommended temperature. Adjusting the thermostat too low can lead to frozen coils. Aim for a temperature between -18°C and -20°C (-0.4°F and -4°F) for optimal freezing performance.

5. Clean Coils Regularly: Keep the freezer coils clean from dust, dirt, and other debris. Use a vacuum or a brush to remove any build-up, promoting efficient heat transfer.


Freezer coils should never be frozen. Keeping them free from ice build-up is crucial for maintaining efficient cooling performance and prolonging the life of your freezer. By understanding the importance of proper airflow, regular defrosting, and optimal temperature control, you can prevent frozen coils and ensure your freezer continues to keep your food fresh for longer.


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