A lot of water was coming out underneath the equipment.

Steps:
1.- Open the front panel by pressing down (with a spatula) the 2 metal locks located between the front and top panels.
2.- Remove the drain hose located int the lower right and at the bottom using a set of pliers and a nutdriver.
3.-Install the new drain hose.
4.-Reinstall the front panel

The installation itself took me less tha 15 minutes.
Since I had opened the the front panel, I took rthe oportunity to air clean and dust off the equipment.