My dishwasher (Miele G665SC) had leaked terribly and limescale was everywhere. After cleaning everything, its functioning fine, but water is once again very slowly dripping out of a drain hole at the bottom of the motor/pump, onto the base of the unit. What is usually the problem in this case? I think the water is getting through the shaft opening of the impellor; perhaps a damaged rubber washer? What can be done to fix this - given that a replacement pump will cost about £200!
Also, the unit is only 5-6 years old. I discovered that the water hardness meter was set to '2' all this time, for soft water, but of course London water is relatively hard. Could this have caused the leak problem?