Coffe is too watery, and pucks are very loose

Your machine needs dealer service. Either the brew group needs replacing or all the O-rings need replacing. The reason the grounds are wet is because water is forcing by the worn seals. These machines need dealer service every 6 to 9 months, and of course they don't tell you that when you buy them.

https://www.google.com/search?q=Saeco+Vienna+Machine+watery+pucks

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It can be that the beans are just of weak taste. Also, you should be able to set your coffee to a smaller size, which means that less water will be added.

First, I'm NOT a Saeco technician, But I have worked on similar machines.
*** You should contact your service vendor. Especially if it's still under warranty. The following is for information only.***
* The spout dispencing only on one side can be caused by an uneven table/counter. A clogged spout. and a crooked spout (got banged out of alighnment)
* Water in the dregs. Check if the pucks are watery or there is just water at the bottom of the tray?
* Watery pucks are from low coffee dose or low compression.
* Water in the tray is the overflow from one of the water systems.
* There are really no customer serviceable parts in this machine. Though there are a lot of adventurous people out there that like to tinker with this machine.
* again, call for service.
Aloha, ukeboy57

P.S. check you tube for your model and brand. many sites with D.I.Y. cleaning and servicing of this machine.

In the waste basket you got a nice round coffee puck i think you need to ajust the grinder its not chopping fine enough press for a coffee and put the dial down 1 like if your at 6 put 5 remmember the coffe you grind will take 2 coffe to reach try a couple and if your satisfied good if not go down on more try again

Have you clean the brew unit with the cleaning tablets? This dissolves and rids the brew unit of the oils which in turn build up and clog the brew unit - the result being watery pucks and less product being disbursed.

First, I'm NOT a Saeco technician, But I have worked on similar machines. It's odd that you had to clean the screen of the machine though I'm not sure it this is a recommended procedure as these home "super automatic" are a ROBOT espresso maker. Yes on large espresso machines the group screen is easily removed for daily or at minimal weekly cleaning. There is a screw in the center which is easily removed and screen is brushed till clear of grounds.
* I'm surprised that you can access this screen. But since you have already done so then I guessing you disassembled the piston
assembly (the part that squeezes the grounds to form the puck.
* Okay, The group usually has a number of gaskets (or O-rings)
and I can see from the "Gasket Set"
https://www.bing.com/shop?q=+Saeco+Vienna+Plus&FORM=SHOPPA&originIGUID=202322DD03D24C3DBC248AAE69EBE4D6
There are quite a few gaskets. Now since these are available on line I'm guessing they have been made available to those willing to replace them. So maybe your okay.
* I suspect one or more of the gaskets are not sitting just right to make a proper seal. It's either broken or not in place. Thus the group leaks and water is probably leaking past the piston and leaks on puck after it dumps.
* There is another possible problem (watery pucks) is that the piston is not compressing the coffee into a proper puck. It needs to squeeze the grounds down to restrict and slow down the hot water giving it enough time to extract the coffee essence from the grounds. If your getting weak coffee and watery, loose pucks then it's the piston. This could be caused by a misplaced compression spring or that loose gasket getting in the way.
* I would normally suggest you calling for service. But Since you have already taken this unit apart (and I Don't know about the warranty) You may have to carefully work your way backwards on what you did to see if anything is missing or loose. Go all the way back to where you think was the end and look around. Put it all back together and try again.
* Okay NOW I remember this machine! It's on youtube BUT I'm cringing as I watch it! Really don't like this machine (Sorry) I had 15 come into the shop and only got 3 to work. Way too many sensors and safeties. I still got an old one in the garage that worked for a month then stopped for no reason. Okay here is the link Good luck!
Aloha, ukeboy57

https://www.youtube.com/watch?v=xGIK-lc__dw

You have accidentally turned down the brew strength selector, on front of unit just above "clean" and "descale" buttons. Dial it the the maximum. Will grind longer, make more grounds, larger puck, stronger coffee. Or this dial is broken/ wire broken etc. u can disassemble per some other posts on here and check wire connections. I did all that then realized someone had just turned it down. So I turned it to maximum strength and problem fixed.

Hi There are 2 problems that can cause a watery puck. 1. Like EsWorld said, If the grinds is too coarse it leaves room for more water and you get a watery puck. 2. But if your grind is like a grain of salt, the you don't have enough coffee going into the brew unit, and this leaves room for extra water. To fix this, there is a lever on the top center of the door. The lever will increase the dose if pushed towards the back. DON'T push the lever to the full back position. This could cause an over charge, which could cause the brew unit to dump the ground coffee with out making because it could not compress the charge, or it could break the brew drive. 1 click back from the full plus is fine and will give a great shot.

go into the menu and reduce the amount of water the machine pumps through

thanks
Coffee fix

Be sure your metal strainer in the coffee puck funnel isn't clogged. Check you grind level adjustments also.
Best Wishes,
Lane