Product review (1 stars): Lemon.
Bought 2 of these refrigerators for my son's. A few months later we
realized they were both running practically all the time. On
investigation we found that when the right door is closed last, it blows
the left door open about 1/4 inch which exposes the interior of the
refrigerator to outside air, rendering the insulation ineffective.
However, it's not enough to set off the door alarm so you won't know it.
Samsung's warranty servicer for my area,  says it's normal for this
model and Samsung will not warranty this problem. My advice: stay away
from this refrigerator unless you love to pay high electric bills. I
wasted $3500 on these. I know I will never buy another Samsung product.