Last night I noticed my ice cream turned into soup. I turned my freezer knob to its coolest level and this morning I didn't see a difference in the ice cream, however my frozen meats are still frozen solid.

Could I fix the freezer myself and if so, what do I need to do? If its something I need to hire a professional for, what would he do and how much do you think I will be spending. I don't want to get ripped off.

The refrigerator is working fine.

Thanks in advance,