The Freezer Is Not Freezing

Introduction

A freezer that isn’t freezing is a major headache. Not only can it lead to food spoilage, but it can also be a sign of a bigger problem with your appliance. This guide will walk you through common causes and step-by-step troubleshooting to get your freezer back to its optimal temperature. Acting quickly is essential to prevent food waste and potential health hazards. Explore more in our Refrigerator Problems 1 collection.

Common Causes of a Freezer Not Freezing

Here are some of the most common reasons why your freezer might not be freezing properly:

• Overfilled Freezer: Too many items can block airflow, preventing proper cooling.
• Dirty Condenser Coils: Dust and debris on the coils hinder heat release, reducing cooling efficiency.
• Door Not Sealing Properly: Warm air entering the freezer raises the temperature.
• Faulty Door Switch: If the door switch is broken, the freezer light might stay on, generating heat.
• Incorrect Temperature Setting: The thermostat might be set too high.
• Blocked Air Vents: Obstructions inside the freezer can disrupt cold air circulation.
• Frost Buildup: Excessive frost can insulate the freezer and prevent it from cooling.
• Faulty Start Relay: Start relay supplies power to start the compressor, without this relay the compressor will not start.
• Compressor Issues: The compressor is the heart of the cooling system, and if it fails, the freezer won’t cool.
• Damaged Thermistor: The thermistor measures the temperature and sends this info to the control board, which will then start or stop the compressor.

Symptoms Checklist

Use this checklist to help pinpoint the problem:

• Freezer temperature is above 32F (0C).
• Food is thawing or not freezing solid.
• You hear the compressor running constantly, or not at all.
• There’s excessive frost buildup inside the freezer.
• The freezer door doesn’t seal tightly.
• The outside of the freezer feels warmer than usual.
• The freezer light stays on even when the door is closed.

How to Fix the Freezer Not Freezing Step-by-Step Guide

1. Check the Temperature Setting: Ensure the thermostat is set to the recommended temperature (usually around 0F or -18C).
2. Clear Air Vents: Make sure nothing is blocking the air vents inside the freezer. Rearrange items to allow for proper air circulation.
3. Check for Overloading: Remove some items to allow for better airflow if the freezer is packed full.
4. Clean the Condenser Coils: Unplug the freezer. Locate the condenser coils (usually on the back or bottom). Use a vacuum cleaner with a brush attachment to remove dust and debris.
5. Inspect the Door Seal: Check the door gasket (seal) for any damage, cracks, or debris. Clean the gasket with warm, soapy water and dry thoroughly.
6. Test the Door Seal: Close the door on a piece of paper. If you can easily pull the paper out, the seal may be weak.
7. Defrost the Freezer (If Necessary): If there’s excessive frost buildup, manually defrost the freezer. Unplug the freezer and leave the door open, placing towels underneath to catch water. You can speed up the process with a fan.
8. Check the Door Switch: Open the freezer door and manually push the door switch (usually located near the door hinge). Does the light go off? If not, the switch may be faulty.
9. Check Start Relay and Overload Switch: Usually these are located inside a box on the side of the compressor, it is worth checking their continuity by removing them and using a multi-meter.
10. Check the Thermistor: Locate the Thermistor and test it with a multi-meter.
11. Listen to the Compressor: Is it running? Does it sound normal? A strange noise can indicate a problem. If the freezer is running all the time, consider to check the thermistor.
12. Check the Power Outlet: Ensure the freezer is plugged into a working outlet. Try plugging another appliance into the same outlet.
13. Reset the Freezer: Unplug the freezer for 30 minutes, then plug it back in. This can sometimes reset the system.
14. Check the Fan Motor: Open the freezer door, and listen if you can hear or feel the cold air circulating in the freezer. If you don’t feel or hear anything it can be the motor of the fan.

Fix the Issue Without Buying Parts

Before you start ordering replacements, try these free methods:

• Reset: Unplug the freezer for 30 minutes to reset the system.
• Cleaning: Thoroughly clean the condenser coils and door seal.
• Recalibration: Ensure the temperature setting is correct.
• Inspection: Carefully inspect the door seal for gaps or damage.
• Maintenance: Regularly clean the condenser coils (every 6 months).

When Replacement Might Be Necessary

If the above steps don’t resolve the issue, a faulty component might be to blame. Some commonly failing parts include:. For more related activities, check out our Fridge Water Line Leaking In Wall.

• Door Gasket: A damaged gasket ($20-$50) can be replaced.
• Door Switch: A faulty switch ($10-$30) can be the culprit.
• Start Relay: A damaged start relay ($30-$60) can cause the freezer not to start the compressor.
• Thermistor: Replacing a damaged thermistor ($20-$40) can fix many freezing problems.
• Compressor: Replacing a compressor ($200-$500 + labor) is a major repair and often not worth it for older freezers.

Safety Warning

• Always unplug the freezer before performing any maintenance or repairs.
• Avoid working with electrical components if you are not comfortable or experienced. Call a qualified technician.
• Be careful when handling sharp tools or components.
• Keep the area around the freezer dry to avoid electrical shock.
• If you are not sure about something, consult a professional.

Tools You May Need

• Screwdriver (Phillips and flathead)
• Vacuum cleaner with brush attachment
• Warm water and soap
• Clean cloths or towels
• Multimeter (optional, for testing electrical components)

FAQ

• Q: Why is my freezer running constantly but not freezing? A: This could be due to dirty condenser coils, a faulty door seal, or an overfilled freezer. Check these areas first.
• Q: How often should I clean the condenser coils? A: It’s recommended to clean them every 6 months.
• Q: How do I know if my door seal is bad? A: Close the door on a piece of paper. If you can easily pull the paper out, the seal is likely weak.
• Q: What temperature should my freezer be? A: Around 0F (-18C) is ideal.
• Q: Is it normal for frost to build up in my freezer? A: Some frost is normal, but excessive frost buildup can indicate a problem. If you are noticing excessive frost consider to check the door seals.
• Q: Why my freezer has a fan but I can’t feel any wind circulating in the freezer? A: Most probably it can be the motor of the fan, test the fan with multi-meter or call a qualified technician to test the motor of the fan.

Conclusion

Troubleshooting a freezer that’s not freezing can seem daunting, but by following these steps, you can often diagnose and fix the problem yourself. Remember to start with the simplest solutions and work your way up. If you’ve tried everything and your freezer still isn’t freezing, it might be time to call a qualified appliance repair technician. Don’t give up hope you can often save your freezer (and your food!) with a little bit of effort. Discover more free resources across our collection library.