Alternatively, if you hear a high-pitched squeal or chirp sound, there may be something caught in the fan blades or the motor may be dying. Should the refrigerator evaporator fan run constantly? Help please!This DIY "Do it Yourself" website was created by maintenance professionals and home renovating experts. If your freezer isn’t as cold as it should be, there might be a problem with your evaporator fan motor. If the fan motor doesn’t start while you hold the switch, it’s probably broken. {"smallUrl":"https:\/\/www.wikihow.com\/images\/thumb\/0\/0a\/Test-an-Evaporator-Fan-Motor-Step-1.jpeg\/v4-460px-Test-an-Evaporator-Fan-Motor-Step-1.jpeg","bigUrl":"\/images\/thumb\/0\/0a\/Test-an-Evaporator-Fan-Motor-Step-1.jpeg\/aid10400649-v4-728px-Test-an-Evaporator-Fan-Motor-Step-1.jpeg","smallWidth":460,"smallHeight":345,"bigWidth":"728","bigHeight":"546","licensing":"

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