Impressa C5: Dispenses water from drainage valve
Posted by: cjs January 09, 2021 11:07 pm
I have overhauled my Impressa C5 and exchanged all parts relating to the water system (new boiler, pump, etc). I've also cleaned the brewing group, and changed the gaskets and cap within the drainage valve.
The issue is that no coffee is dispensed through the mouthpiece. Instead, the hot water flows through the drainage valve directly into the tray (likewise with the dry, grounded, beans). One thing that I've noticed since the disassembly is that the magnet is noisy and has a sharp "brrrr"-sound to it.
I've taken everything apart a couple of times, checked all the gaskets and screws (both the Brewing unit and drainage valve) - and truth to be told the machine is driving me crazy. Any ideas? Is the magnet faulty, or can it be the drainage valve?
Thanks, 
Cj
Posted by: Almaty January 09, 2021 11:49 pm
Can you make a little video?
Posted by: cjs January 10, 2021 12:04 am
Hi Almaty, thanks for the reply! Here's the link: https://youtu.be/HBeZIwueYWM
Ok, so the issue with the magnet was that the cap wasn't fully hammered to the pin. I've doubled checked that the flat sides of the two thick gaskets are facing outwards towards both the valve and the springloaded pin. Still, water is flowing through the valve. 
Update: The machine managed to brew three cups of coffee, albeit it now continues to dispense water in the tray. 
Posted by: Schlawi January 10, 2021 09:33 am
Measure the length of the ram. Must have under 53mm. About 52.8mm
Posted by: cjs January 10, 2021 12:50 pm
| QUOTE (Schlawi @ January 10, 2021 08:33 am) |
| Measure the length of the ram. Must have under 53mm. About 52.8mm |
Kind thanks for your reply!
Edit: You sir are right! Thank you, thank you so much!
I’ve tried for more than ten hours wrapping my head around this.
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