Does the freezer fan run constantly? The evaporator fan motor draws air over the evaporator coils and circulates it throughout the freezer. To compensate for the decrease in cooling capacity, the freezer will run continuously in an attempt to keep the freezer cold.
Full Answer
Why is my freezer fan not running when it's frozen up?
Once the freezer reaches it's intended operating temperature, both the pump and the fan normally turn off, to save power. The reason your fan had not been running was that most likely, your pump was not having to work very much while the freezer was frozen up, as the ice contributed greatly to maintaining the frozen condition in the freezer.
Is it normal for a freezer to run all the time?
Your freezer should be running about 80-90 percent of the time. If it’s running 100 percent of the time, then something’s wrong. Your freezer cycles on and off every few minutes. Your freezer’s compressor should, on average, turn on every 30 minutes. If it’s more than this, you may have an issue.
Should the evaporator fan run all the time in a refrigerator?
If you understood the refrigerator cycle earlier, you would know that a faulty evaporator fan will prevent cool air from circulating. The evaporator fan is not supposed to run all the time but until the refrigerator reaches a set temperature. However, it runs in combination with the condenser and compressor fan. This is one school of thought.
What is the function of the fan on a freezer?
The function of the fan is to push (or pull) cool air across the coils connected to the refrigerant pump to cool them down (thus shedding the heat that's pulled out of the inside of the freezer). Once the freezer reaches it's intended operating temperature, both the pump and the fan normally turn off, to save power.
Is the fan in a freezer supposed to run constantly?
How do I know if the fan in my freezer is working?
Does freezer fan turn off?
Why is the fan in my freezer not working?
When should the evaporator fan run?
What is fan in freezer for?
Should refrigerator fan run constantly?
How often does refrigerator fan run?
What causes freezer not to freeze?
Does the fan in the freezer cool the fridge?
Significant Changes in Temperature Matter
The fan doesn’t need to be constantly running as long as there are no significant changes in temperature within the unit itself. If there is an increase in heat or humidity, it will turn on automatically without any input from us humans!
Bonus: Tips on Keeping It Running Smoothly
Make sure there is enough space inside the compartment so that hot air has some room to escape instead of staying trapped with all those cold items;
Conclusion
The answer to this question is not always as simple as it may seem. Many factors can determine whether or not a refrigerator’s fan will be running, but the most common reason a fridge runs its cooling fan without stopping is because of heat from food being stored in the freezer.
What is the function of a freezer fan?
The function of the fan is to push (or pull) cool air across the coils connected to the refrigerant pump to cool them down (thus shedding the heat that's pulled out of the inside of the freezer). Once the freezer reaches it's intended operating temperature, both the pump and the fan normally turn off, to save power.
Do freezers shut off when ice is inside?
Once the freezer returned to it's normal operating temperature they shut off again, but since the ice was no longer inside the freezer to keep the temperature down, the outside heat was much more able to seep into the freezer chamber and warm it to the point where the thermostat detected the need to cool it down, and turned them back on again.
Why shouldn't an evaporator fan run all the time?
Most people believe that the evaporator fan runs all the time. However, others think it shouldn’t because it will use a lot of power. A faulty evaporator fan does not cool the food and defrosts the one in the freezer. The inside is warmer than it should be.
Why does my refrigerator fan run with no break?
When the evaporator fan runs only with the condenser, you save up a lot of power. When the fan runs without any break, it causes air to circulate properly. This will produce an even temperature throughout the refrigerator. This is what some experts believe.
What is inside a refrigerator?
Inside the refrigerator are the evaporator coils. The evaporator fan takes the air from the refrigerator. It blows the air into the evaporator coils. The refrigerant, present in the evaporator coils, in turn, gives off cold air to cool the items inside. The compressor converts the liquid refrigerant into gas and pumps it into the condenser coils.
What happens if the evaporator fan fails?
When the evaporator fan fails, the stuff in your freezer will defrost. Open the freezer and check if you can feel cold air. If yes, then the problem may not be the evaporator fan.
Why is the evaporator fan important?
The working of the evaporator fan is important as it blows the air from the coil into the refrigerator. So, when the cool air does not reach your food, it will ruin over time. The refrigerator tries to handle the situation by working overtime. The problem may also lie with the evaporator fan’s motor.
How much does it cost to change an evaporator fan motor?
When the evaporator fan motor changes, it will cost you anywhere between $150-250. It will not break your bank, but surely will be a hit to your monthly budget. So, during your kitchen work, if you noticed the refrigerator didn’t shut off, the problem can lie anywhere.
Why is my refrigerator not shutting off all day?
If you notice that your fridge didn’t shut off all day, you need to start finding the culprit. You likely have a problem with the condenser, evaporator fan, or compressor. When your refrigerator is working constantly, but it is still warm, the problem may lie within the evaporator fan. You will not notice any air blowing as well.
Why does my refrigerator fan keep running?
A common reason a condenser fan is continually running within a refrigerator is the thermostat. This sensor takes readings from the refrigerator (and freezer if you have one) and flips the cooling system on when it sees the temperature isn’t where it needs to be. Once a thermostat stops working the fridge never has a sensor to tell it ...
Why does my fan run continuously?
Once this happens it begins to impede the performance of the coils, much as a dirty spark plug in an engine will cause things to sputter. As a result, your condenser will have to work harder to keep things cool, thus causing the fan to run continually. You can clean condenser coils manually by simply wiping the dirt/grime off while ...
How does a refrigerator condenser work?
The vents that pull air into the motor for the fan to circulate are covered with filters for dust , and when that dust begins to build up it limits the amount of fresh air that can be pulled into the motor. This forces the condenser fan to work continually to try and disperse the heat. If vents are clogged you'll need to clean them, which is something you should do every few months for best results.
Why does my fan motor keep running?
If this happens there could be a short in the motor’s electrical components which is forcing the motor to continually run even when it is clear there is no thermostat damage, airflow issues or condenser buildup.
What is the condenser in a refrigerator?
The condenser in a refrigerator is a motor, and like the one in your car it needs constant airflow to remain cool enough for the working parts to remain in working condition. The vents that pull air into the motor for the fan to circulate are covered with filters for dust, and when that dust begins to build up it limits the amount ...
What happens if the thermostat stops working?
Once a thermostat stops working the fridge never has a sensor to tell it when to turn off, and it will just keep going. A basic test is to set the thermostat on the warmest setting; if the cooling unit continues to run, even when it's being told to keep the fridge warmer, you have a broken thermostat.
How does a refrigerator keep the air cold?
A refrigerator keeps its cold air inside through the use of insulated panels on the walls of the unit, as well as the seal which keeps the internal air from escaping through the door when it is closed. This is usually some form of rubber-based seal which runs the perimeter of the door to keep the seal tightly closed when the door is shut. If this seal is damaged or worn out over time, it can lead to cold air continually escaping, and thus the fan always running. The strip needs to be replaced and can be peeled/cleaned off the inside of the door and then a new strip put in place. These strips are commonly sold with self-adhesuve strips along the back side that are simply pressed in place.
Why does my freezer run constantly?
A broken part. A broken gasket or coil, or a blocked vent can also contribute to run time. A broken part may cause a freezer to run constantly.
How long does it take for a freezer to run?
Although the average cycle for a freezer is about 30 minutes, the run time can fluctuate depending on certain factors. Here are five factors that contribute to a freezer’s run time:
What is the purpose of the defrosting cycle on a freezer?
The purpose of this cycle is to melt any excess frost that has built up in your freezer. After the freezer has reached a certain temperature, the compressor turns off completely.
How often should a freezer compressor turn on?
Your freezer cycles on and off every few minutes. Your freezer’s compressor should, on average, turn on every 30 minutes. If it’s more than this, you may have an issue.
How long does a freezer cycle?
The average cycle time is 30 minutes. You can control this through varying factors such as the temperature of the room and what is stored inside your freezer. Throughout this article, you will find out why a freezer cycles on and off, and contributing factors to a freezer’s run-time.
What to do if freezer door gasket is dirty?
If the door gasket is dirty, you can clean it with a toothbrush dipped in a mixture of vinegar and water. If the door gasket is broken, you may need to replace it.
How full should a freezer be?
You want to keep your freezer about ¾ full at all times. This way, when you open the door, the cold air that the food emits will keep the freezer cool enough so that the freezer won’t have to cycle on again. If you leave your freezer empty, it will have to cycle on to reach the designated temperature.
How long does an evaporator fan stay on?
The evaporator fan usually stays on except when you are in defrost mode. Usually half an hour or so every 8 hours. Sounds like you have a defrost problem. The unit will run OK for a few days till the evaporator coils again get clogged up with ice/frost again.
Can you defrost a heater with a thermostat?
No if the heater comes on the defrost thermostat is OK as it is in series with the heater. One proviso is that the defrost thermostat can go intermittent, often you can see that it is bulged out. Keep an eye on the defrost timer it could be that it is hanging up at one spot in it's cycle.
