My hotpoint ctd80 condenser dryer is leaking water?

On opening the door it is full of hot steam- water is leaking from underneath. There is very little water in the plastic collecting drawer.I have removed the condensing unit at the bottom front of dryer and cleaned it out( as I regularly do as recommended) At the back of where this slides in there is a huge pool of water .Any suggestions what is wrong with it please.Xmas is coming and a new dryer is not on my list!!