The evaporator fan of your refrigerator is found in the freezer compartment. It receives the air coming from the evaporator coil and proceeds to circulate the air into the whole unit. It functions closely with the damper assembly of your refrigerator that is responsible for controlling how much cold air gets to be distributed into the fresh food compartment of your refrigerator.
Function and Operation
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In normal circumstances, the evaporator fan should function in conjunction with the compressor. However, you will know when your evaporator fan has been damaged because it will affect the performance of your compressor. If the evaporator fan stops turning, the cold control sensing bulbs of your fresh food compartment will notice that there is no more air flow.
The sensing bulbs will signal the compressor to work longer to compensate for the lack of air flow. What ultimately happens is that your evaporator coils will freeze over hence increasing the temperature of your freezer.
When you do not defrost your refrigerator properly, the evaporator may ice up and cause an obstruction in the blades. Before you have somebody take a look at your refrigerator, switch off the power and open up your evaporator fan to check that there are no blockages preventing the movement of the fan blades.
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