This refrigerator was a given to me a gift, which is sad because it was intended to replace a 25-year old refrigerator that was still working.  Right now, after only 18 months, the back of the freezer compartment is making jackhammer noises and the refrigerator compartment is not cooling below about 58 degrees, causing mold to grow and forcing me to throw everything out. I checked to see if there was any ice build-up blocking the vents and everything is clear.  I can't believe that LG products are only made to last for 18 months when I can pick up 25-year old refrigerators that are still running.  This sours me on their entire line of products.