Leaking Fisher & Paykal Fridge

I have a Fisher & Paykal E372B fridge with a bottommounted freezer. Of late the fridge has been leaking twice a day. I have seen a Youtube video which says that the leak is probably due to a blocked pipe through which water drains to a pan at the bottom for evaporation. Unfortunately the video referred to a top mounted freezer. I would lie to know how to access the pipe in a bottom mounted freezer.