My new refrigerator (model 22r7351sr) will not cool down. We have tried everything we can think of. We set the fridge to 37 and freezer to zero, but nothing happens. This is a brand new refrigerator. After install, it cooled down to 65 and then stopped. We are working with the delivery people and seller (Costco) as well. This is quite frustrating since we lost a bunch of food.