Try cleaning out the hole at the back at the bottom.
For the hotpoint model cdt40 - Unplug (!) Remover the condenser unit at the front and put your hand in at the back and feel for a hole if it is wet then its not able to do it's job properly. Gently poke a thin straw down the hole (like at the back of our older fridges). Remove any gunk. and dry out the area with a cloth or two. there will be more water than you think here so have two cloths ready. Just let the cloth sit there for 5 mins to soak up water.
As Tim said, run the machine again to finish drying - DONT FORGET to remove all the collecting cloths first!!
Pop in a couple of Tumble Dryer Nice Smelly Sheets (forgot their names).
See how that goes and let us know how you get on!
c2001
October 2009