Product review (1 stars): Spoiler alert. My actual fan switch (due to age) ...
Spoiler alert.  My actual fan switch (due to age) cracked & my husband ordered this.  The switch does not control the fan, it controls the light.  Over the course of two slow days, everything in my Sub-Zero started to defrost, and, most of the contents had to be thrown away.  THE FAN SWITCH, should turn the fan ON when the door is closed, and turn it OFF when the door is open.  THIS LIGHT SWITCH, does the opposite.