Why is refrigerator making an intermittent humming noise?
crwdns2934249:0crwdne2934249:0:
My top/bottom Whirlpool refrigerator/freezer is making an intermittent humming noise for 8 seconds every fifteen minutes. Performance of the refrigerator and freezer are apparently not affected - they remain cold. What causes this humming? Is it abnormal? How can it be fixed?