Hi I think I have the same problem here. I have an integrated under counter fridge with a top freezer section. The freezer is section is cold and has frost. The top shelfs of the fridge seem cold-ish. But the bottom half seem warm with my milk going off after a couple of days. Its an Ariston SN 504273050. With it been integrated everything is screwed in all over the place - Time to rip out and replace?