I've punctured a hole in the lining of the freezer compartment of our fridge freezer. There's now a small hole which has been slowly leaking a fluid which smells a bit like antifreeze. The freezer has been making more noise than usual and giving off some heat, although the freezer compartment itself is still cold. Can anyone please advise as to whether I've killed my freezer or might it be fixable!? Many thanks, Andy

It sounds like you have punctured the evaporator coil and it is leaking refridgerant.

That would certainly cause the unit to be low on refridgerant which would cause it to start warming up, and becoming louder. It would also explain the smell.

If the unit is fairly new it *may be worth repairing, You will likely need a new coil.

Expect costs in the 300 to 500 range.
I reccomend getting a secondary place to store the food, and unplugging the unit emediatly if you want to have it repaired.

The reason for that is because the compressor is likely undamaged at this point. but if it runs on empty it will soon fail and then you can double the repair price or more.