Proline frost free upright freezer. uf200b?

I have this freezer and my carpet was getting wet underneath it. I pulled it out and noticed that a black corrugated tube was hanging loose at the back with a bit of broken plastic in the top. I can see where it has broken off from and the water is coming out from there. However, at the other end at the bottom I can't see where it is supposed to be connected to. Surely it doesn't just hang there or else the water would still drip out. I only had a nosey at it as the fan seemed to be on constantly and I was wondering why.
Any help or pointers will be greatly appreciated.
Many thanks, Allan.