Have had a water leak problem on our ariston a1636 for some time,the water was leaking from the detergent dispenser at the spin cycle ,but not on every occasion. Would like to add a bit more information to what I picked up here. Tried the following this afternoon. 1.Lay on its right side. 2. Place 2 or 3 tea towels over the electric motor . 3. Remove the back plate from the rear of the machine . 4. Locate the large black hose , it will have 2 jubilee clips. 5.Slacken off the larger of these , a small amount of water will then drip on to the tea towels and not damage the motor. 6.Remove the ping-pong ball and its plastic holder to gain access to any blockages , be aware of foul smell. 7. Clean out all items. 8.When replacing the plastic holder and ball remember there are 2 key-ways to align it properly under the main drum , put this in place first and then the end of the hose over it . 9. When replacing the hose , this also has a key-way so as not to be twisted or kinked . 10. Resecure the jubilee clip. Hope this helps, taking your time on this job should be about an hour . Good luck.
Horatio, April 2011