My Saeco Vienna Superautomatica leaks

This is an easy fix for a 14$. The seal at the water tank connection is worn. Take the water tank off. There is a round flat topped plastic retainer. Pry off the retainer (comes off easily). You will see a black round o-ring made to fit on a channel. Remove the o-ring and replace.Two minutes and you are without water leaks. I do not remove the tank to fill anymore, I use a pitcher instead. Part number 3 in this diagram.
http://www.partsguru.com/user/VIENNA%20PLUS%20DIAGRAM.pdf

Change Wanter inlet Seal:
Part #NM05.006

Any water leaks following the pumping sound ?

If there is no leaks, I would try to get some hot water from the wand.

If there is still no water coming out, I would:

1-Decalcify thoroughly

2-Open the machine and take the inside out and verify the status of the water pipes going from the water tank to the boiler than to the wand and the brew unit ... to make sure there is no restriction.

3-Replace water pump

The o-rings of the water tube coming out of the boiler need to be changed. Rubber O-ring tend to expand after extended exposure to heat.

Is it leaking only when brewing coffee ?

If not I would check the seal under the water tank (Part #NM05.006)

If so, I would check the following:

1- The water input port on the back of the brew unit (looks like a smoke pipe) might be clogged

2- The o-ring of the water tubes coming in and out of the boiler.

Grinds are too fine and or the coffee chute is clogged.

i had the same problem what i suggest to you clean where the water tank were its sit very good put the tank back me i never remove the water tank i clean regualy i put the tank empty on the machine and fill it with a glass never leak again pierre

your problem may be in the watertank. I had that problem, and found out, the metalfeder fastened so it stayed open, after making a cup of espresso.

Hi,

If you take out the brewing unit and look in the chassis where the brewing unit was, you will see a hole. Make sure that hole is clean.

We had this problem and it was overflow from a clog -- check the hole where excess water drains into the drip tray to see if it is full of grounds. Cleaned it out with a twistie tie and flushed w/ water. That stopped the water on our counter!