Does The Evaporator Fan Always Run?

does the evaporator fan always run
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does the evaporator fan always run

It is convenient to fetch a bottle of cold water from the refrigerator. The background process is complex and only special brains could come up with this engineering mastermind.

Let’s talk about it in simple words. 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. Here, the fan cools the gaseous refrigerant, and the heat is pumped out of the refrigerator.

Does The Evaporator Fan Always Run?

Are you wondering that does the evaporator fan always run? We will give you a detailed answer.

It is necessary for the refrigerator to keep on working in cycles. 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. 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. 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.

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. You will get to the main problem only when an expert will look into it.

How to check your evaporator fan?

  • 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.
  • Can you hear a loud pitched squeal from your refrigerator? This is an indication that the evaporator fan will fail soon. To counter this issue, remove the rear panel. It will allow access to the fan’s motor. The noise also depicts that the fan blades may not be working the right way. The worn-out blades need to be replaced. In case of evaporator fan noise, the refrigerator is warm, and the items take longer than usual to cool down.
  • When you remove the rear panel, check if there is any frost on the coils. If the refrigerator starts working, it shows the problem wasn’t with the evaporator fan or its motor.
  • There might be a problem with the grommet. The evaporator’s fan sits on the mounting bracket and prevents the noise. So, check out if the grommets are damaged instead of the evaporator fan itself.

How much does it cost to change the evaporator fan?

The cost depends on the problem. 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. Whether the evaporator fan works all time or not depends. A normal refrigerator works in cycles. Thus, it shuts off from time to 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. Get in contact with a repair technician to look into the matter.

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