Humming in Whirlpool Side by Side Refrigerator

Question

There is a humming noise coming from my side by side. May be related to ice maker? When it happens I've been lifting the lever to just stop the ice maker, which eventually stops the noise. Doesn't make the noise all the time, or at least not that loud. Is still making and dispensing ice and water. Sound coming more from the freezer side, towards the back.