When a freezer stops freezing but the fridge section continues to run, it can feel confusing. We expect both to work together since they share the same appliance. However, several common issues explain why one side keeps running while the other struggles. Our team at Quick & Pro Appliance Repair Pasadena has seen this problem many times, and we want to walk you through the causes and solutions.
Temperature Settings and Controls
Sometimes the issue is as simple as incorrect settings. If the temperature dial is turned too high, the freezer may not get cold enough. On the other hand, if the fridge setting is too low, it can pull most of the cooling power to the refrigerator section. Checking and adjusting the controls should always be the first step.
We also need to remember that electronic controls can fail over time. When this happens, the sensors may not properly signal the cooling system. As a result, the fridge still works because it needs less cooling power, but the freezer can no longer maintain sub-zero temperatures. In these cases, the repair usually requires replacing faulty sensors or the control board.
Airflow Between Compartments
Another common reason is restricted airflow. Most modern refrigerators use a single evaporator coil to cool both the fridge and freezer. Cold air is pushed into the freezer first and then routed into the refrigerator. If the airflow vents are blocked, the balance shifts, and the freezer struggles.
We often see this problem when vents are blocked by food or ice buildup. For example, stacking frozen packages too tightly can stop air from moving freely. Likewise, frost forming inside the vents prevents circulation. Clearing the airways and allowing space around vents can restore proper airflow. This is one of the simplest fixes that homeowners can try before calling for fridge repair in Pasadena.
Frost Buildup on Evaporator Coils
Frost buildup is another frequent culprit. Freezers are designed with defrost systems that melt excess frost at regular intervals. When this system fails, frost quickly covers the evaporator coils. Once the coils are buried, they cannot release cold air into the freezer.
Meanwhile, the fridge may continue to cool because it still receives some airflow from the blocked coils. However, the freezer requires much colder air to function. If we see ice crusting along the back wall or vents, it usually signals a defrost system failure. Repairs often involve replacing a defrost heater, thermostat, or timer.
Faulty Evaporator Fan Motor
The evaporator fan is what pushes cold air from the coils into the freezer and fridge. If this fan stops working, the freezer is usually the first to suffer. The fridge may still cool slightly because of natural air movement, but not enough to keep frozen food safe.
This issue can often be confirmed by listening closely. A freezer that hums or clicks but does not blow air may have a broken fan motor. Replacing the motor typically restores proper function. Since this part works constantly whenever cooling is needed, it is one of the more common wear-and-tear failures we encounter.
Damaged Door Seals
Poor door seals are sometimes overlooked. When freezer gaskets wear out, cold air leaks and warm air enters. As a result, frost forms faster on the coils, and the freezer cannot stay cold. The fridge may still run because it is opened less often, or because its cooling demands are easier to maintain.
We recommend checking the seals by closing the door on a piece of paper. If the paper slides out easily, the seal is weak. Replacing gaskets is a straightforward fix that makes a big difference. It is one of those maintenance steps that prevents bigger failures later.
Compressor and Refrigerant Problems
If all else checks out, the issue may be deeper in the cooling system. The compressor is the heart of the refrigerator, pumping refrigerant through coils to produce cold air. When refrigerant runs low or the compressor weakens, the freezer section usually shows problems first.
This is because the freezer requires a more intense level of cooling. The fridge continues working at a basic level, masking the problem for a while. Diagnosing refrigerant issues requires professional tools, which is why we often advise calling appliance repair in Pasadena for a proper check. Trying to solve refrigerant leaks at home is unsafe and can cause more damage.
When DIY Fixes Make Sense
There are a few safe steps homeowners can try before scheduling service. Checking temperature settings, clearing blocked vents, and ensuring the door closes properly are quick fixes that often solve the problem. Defrosting the freezer by unplugging it for 24 hours is another option if you suspect frost buildup.
However, if the issue involves fans, coils, refrigerant, or electrical parts, it is best to leave it to trained technicians. These systems are complex, and a wrong move can lead to costly repairs or safety hazards. For persistent problems, reaching out to professionals through our contact page is the most reliable step.
Extra Tip: Preventive Maintenance
Preventing freezer failure is easier than many people realize. Simple habits like leaving space around vents, not overloading shelves, and cleaning condenser coils every six months go a long way. Likewise, defrosting when ice layers get thick helps the system run smoothly.
We also suggest listening to your fridge and freezer regularly. Unusual noises often signal fan or motor issues before they cause full failure. Addressing these early keeps both compartments working and avoids food waste.
FAQ
Why does the fridge stay cold when the freezer is not?
Because the fridge requires less cooling power, it can still get enough cold air even when the freezer section is struggling.
Can blocked vents really stop a freezer from working?
Yes, blocked vents prevent cold air from circulating properly, leading to poor freezer performance while the fridge still runs.
How do I know if the evaporator fan is broken?
If you do not hear the fan running when the freezer is on, or if cold air is not blowing, the fan motor may have failed.
Is it safe to add refrigerant myself?
No, handling refrigerants requires special tools and training. Doing this at home can damage the appliance and pose health risks.
What is the quickest first step if my freezer is warm?
Check the temperature settings and make sure nothing is blocking the vents. If that does not solve it, unplugging the unit for a full defrost is a good next step.
