Mini refrigerator not cooling after being unplugged, cleaned & plugged in days later.?

I have a mini refrigerator that I've been using for years w/o any problems. I recently decided to get a new one that I thought was bigger on the inside. I started using the new one and forgot to leave the doors open to the old one, which sat in my room for about a week. Mold developed and I took it outside to clean it. I cleaned the inside of the fridge using a water hose. I took care to make sure that too much water didn't get into area's it shouldn't get, especially the back. Since then, I have plugged it in & its not cold. I can hear it running on the inside. The sound is like a combo of hearing air along with water running through a pipe. That same sound as if you were in a basment full of pipes and someone turns on the water. I believe that's how it should normally sound. The big thingy in the bottom back of the fridge which I think is the condenser is hot to the touch. The inside of the fridge is cool & not cold. I'm not understanding why it is not getting cold at all, if all I did was unplug it, clean it & plug it back in days after I cleaned it. The fridge was never turned side ways during the cleaning.