Bottom frig is not cold enough. just connected after 1 yr

Ok do this. Boil some water in a pot then use that to defrost the freezer. This is caused by ice build up in the vent that is keeping the cold air from coming into the refrigerator. Make sure it is defrost completel though cause the ice that is built up is mostly inside and can't be seen. That will solve ur problem I guarantee. Then set the temperature to normal. Like half way. This keeps the frost from building up. Believe it or not as refrigerators get a bit older they actually get even colder and therefore frost build up is more likely. Since no refrigeration can be made completely leak proof, small amount of the freon has leaked out older fridge, and this actually cause it to get colder. You don't need a service technician just defrost then set to a lower setting thats it.