Chest Freezer Not Freezing 8 Possible Causes and Fixes

A chest freezer not freezing can be a real headache, especially when you've got a stash of food inside that's on the verge of spoiling. The first thing to check is the thermostat, which might be set too low or too high.

If the thermostat is working correctly, it's possible that the freezer's temperature control board is faulty. This board regulates the flow of refrigerant, which is essential for keeping your food frozen.

A malfunctioning compressor can also prevent your chest freezer from freezing properly. This is because the compressor is responsible for compressing the refrigerant, which then cools down the freezer.

A clogged condenser coil can also cause the issue, as it prevents the refrigerant from dissipating heat. This can be due to dust, dirt, or other debris accumulating on the coil.

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A chest freezer not freezing is a big problem, especially if you've got food that needs to stay frozen. The national average cost for a freezer and refrigerator repair is around $250.

Overloading your freezer can cause it to malfunction. If you've got too many items in your freezer, it might be blocking the fan's airflow, which can prevent it from freezing properly.

Clearing out your freezer and rearranging items can be a simple fix. The average appliance repair cost is between $100 to $250, but if you're lucky, you might be able to fix the issue yourself for free.

Hiring a professional to repair your freezer can cost between $200 to $300.

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Frost buildup is a common issue that can prevent your chest freezer from working efficiently.

The coils can become clogged with frost, hindering cold air circulation. This is often due to a faulty self-defrosting mechanism.

To check for frost buildup, look for ice crystals on the coils. If you notice any, it's likely that the freezer's self-defrosting mechanism is not working properly.

A defrost is usually necessary to fix this issue. Removing all the frost built up will get the freezer running.

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Here are the steps to manually defrost your freezer:

If after the defrost the chest freezer reaches the required coldness, it was because the frost was built up and was blocking the air from circulating.

Dirty condenser coils can be a major culprit behind a chest freezer not freezing properly. They're usually located on the back or side panels of the unit.

These coils are responsible for releasing heat, and when they get dirty, they can't do their job effectively. This can cause your chest freezer to work harder and longer, leading to increased energy bills and a slower cooling process.

To clean the condenser coils, you'll need to unplug your freezer first. Then, move the unit away from the wall and use a vacuum or brush to gently remove any dirt or debris.

Some common places to find the condenser coils include behind a metal mesh or grate, or underneath the freezer. If you're having trouble finding them, consult your freezer's manual for guidance.

Here are some tips to keep in mind when cleaning the condenser coils:

By keeping the condenser coils clean, you can help your chest freezer run more efficiently and effectively.

A malfunctioning evaporator fan is a common culprit behind a chest freezer not freezing properly.

The evaporator fan is responsible for circulating cool air throughout the freezer. A broken motor can bring up the temperature in your appliance.

If you notice excessive buildup of frost and ice on the shelves and/or walls, it could be a sign that the evaporator fan is malfunctioning. You may also hear a noise or feel vibration coming from the freezer.

To check the fan, unplug the appliance and move most of your frozen food into a cooler.

A malfunctioning evaporator fan can bring up the temperature in your freezer, making it difficult to maintain the desired temperature.

The evaporator fan is located behind the back cover of your freezer, likely above or next to the evaporator coils. You need a functioning evaporator fan to circulate cool air to everything in the freezer.

A broken motor can cause the fan to malfunction, and this is a complex issue that typically requires professional repair or replacement. Consult an appliance professional to diagnose and fix the problem.

A blocked evaporator fan can prevent it from circulating air effectively, leading to cooling issues. Ice buildup or other obstructions can block the fan.

You may hear a fan running occasionally, which is the evaporator fan, helping to circulate air throughout the freezer. If this fan isn't operating properly, it could lead to issues with inconsistent temperatures.

Excessive buildup of frost and ice on the shelves and/or walls can be a sign of a malfunctioning evaporator fan. You may also notice that your freezer is making a noise or is vibrating.

To check the fan, unplug the appliance and move most of your frozen food into a cooler. Look for the panel in the back of the freezer; pull out any shelves that are blocking this panel.

If you see ice built up on the fan blades, remove it and see if this fixes the problem with the uneven cooling and excessive noise. If there is no ice buildup, you should be able to spin the fan freely by hand.

You can also test the fan’s motor with a multimeter. If you can’t spin the fan, or the multimeter test yields incorrect measurements, you likely need to replace your fan, rather than repair it.

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A damaged or worn-out door seal can compromise your freezer's insulation, allowing warm air to enter and cold air to escape.

If the seal is damaged or the door doesn't close properly, cold air can escape, and warm air can enter, lessening the freezer's ability to stay cool.

You can visually inspect the seal for damage, but replacing a damaged seal is not as simple, so it's best to call a professional for replacement help if you find damage.

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Sensor and relay failures can cause a chest freezer to not freeze. A faulty defrost temperature sensor can prevent the freezer from accurately measuring its temperature, while a broken start relay can stop the compressor from working correctly. If the compressor's power is cut off, the freezer won't cool.

A faulty defrost temperature sensor can be identified by excessive frost blocking airflow. In this case, the sensor likely needs to be replaced. A professional repair is recommended due to the complex electrical system involved.

If the compressor start relay is faulty, it can be checked by examining it for damage and burnt spots. If it's damaged, it should be replaced. Alternatively, you can test the relay using a multi-meter to determine if it's faulty.

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A faulty defrost temperature sensor can cause problems with your freezer's temperature control. This sensor helps the freezer determine how cold or warm it is.

If the freezer temperature is set correctly and you don't see excessive frost blocking airflow, the temperature sensor likely needs to be replaced. In this case, it's best to have a professional repair or replace the sensor.

A faulty compressor start relay can prevent your freezer from cooling properly. This part helps power the compressor, and if it breaks, the compressor might not work correctly.

The compressor's power is provided by the start (capacitor) relay, which aids in the functioning of the compressor. If this part fails, the compressor will not start and the freezer will not freeze.

To check if the relay is faulty, examine it for damage and burnt spots. If it's burnt or damaged, it's most likely shorted out and should be replaced. You can also shake the relay to see if it makes any rattling noise, which can indicate a fault.

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Here's a quick checklist to help you diagnose a faulty compressor start relay:

Replacing a faulty compressor start relay can be a relatively simple process, but it's essential to follow proper safety precautions and consult a professional if you're unsure.

Fan and motor problems can be a major reason why your chest freezer isn't freezing properly. A malfunctioning evaporator fan can bring up the temperature in your appliance, making it harder for your freezer to keep food at a safe temperature.

The evaporator fan is usually located behind the back cover of your freezer, above or next to the evaporator coils. You may need a professional to diagnose and fix the problem, as it's a complex issue.

A worn-out condenser fan motor can also cause issues, as it's essential for cooling the refrigerant. This motor can wear out over time, leading to a freezer that struggles to maintain temperature.

A worn fan motor can be a real problem in your freezer. It's a complex issue that's best left in the hands of a professional.

The condenser fan motor plays a crucial role in cooling the refrigerant, which is essential for efficient freezing. Over time, this motor can wear out, leading to a freezer that struggles to maintain temperature.

Replacing a condenser fan motor is a complex task that's not for the faint of heart. It's a job that requires specialized knowledge and tools.

If you're experiencing issues with your freezer's temperature, a worn fan motor could be the culprit. Don't try to tackle the repair on your own, it's best to consult an appliance professional to diagnose and fix the problem.

The consequences of a worn fan motor can be significant, including inconsistent temperatures, noise, and vibration. You may also notice excessive buildup of frost and ice on the shelves and walls.

A professional repair or replacement of the fan motor is usually the best course of action. They can assess the situation and provide a solution that gets your freezer back to working properly.

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A broken compressor is the most common reason why freezers stop cooling properly. This can cause your food to spoil and even lead to a higher electricity bill before the appliance quits working altogether.

The cost of a refrigerator compressor can range from $100 to $500 for the part alone. If you need to replace it, be prepared to pay around $150 for labor on top of the part cost.

Replacing a compressor is a complex project that requires an understanding of the electrical workings of a freezer. It's best to hire a local freezer repair pro for this job.

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Repairing your chest freezer can be a cost-effective option, especially if it's still relatively new and the rest of your refrigerator is working properly. On average, repairs cost between $200 and $300.

However, if you're consistently experiencing issues with your freezer, it might be more practical to upgrade to a newer, larger model. A refrigerator with a freezer lasts between 12 and 20 years, so if you're nearing the end of its life cycle, it's likely more cost-effective to purchase a new appliance.

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Troubleshooting problems can be a daunting task, but it's often a matter of breaking it down into smaller, manageable steps. For example, when dealing with a freezer, checking the coils and seals is a good place to start.

You can also try defrosting the freezer to see if that resolves the issue. However, if the problem persists, it may be time to bring in a professional.

Any work with electrical components can be hazardous, so it's essential to exercise caution when attempting to troubleshoot on your own. In the case of a freezer, a professional can diagnose the exact problem and offer a solution to get it back to working order.

A pro can also help you determine if your fix is covered under your appliance's manufacturer's warranty, which can save you money on the repair.

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Repairing your appliance can be a cost-effective option, especially if it's a combination refrigerator and freezer and the refrigerator is still working properly. On average, refrigerator repairs cost between $200 and $300.

However, some freezer repair prices can go as high as $650. This is still significantly more affordable than buying a new refrigerator with a built-in freezer.

A new refrigerator can cost between $900 and $8,000, making repair a more sensible choice for many people. If you're nearing the end of your appliance's life cycle, which can last between 12 and 20 years, it might make more financial sense to purchase a new one.