Worn brew drive gear makes noise?

Worn brew drive gear makes noise? During rinse and also immediately after coffee flow stops there is an unusual noise that sounds a bit like a slipping gear or a loose part knocking. Any idea what could be causing this and might it be user fixable?
Asked by: Guest \| Views: 200

Total answers/comments: 2

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Guest [Entry]

"Ah, yes, solenoid is the word for ""electric magnet"", thank you.

Look at that video, it shows a damaged brewgroup,

but you can see the action of the valve:

https://www.youtube.com/watch?v=Pxad75B2...

At 0,18 the solenoid gets current and opens the valve by pushing the metal axle. For that duration a humming noise is hearable, listen good.

At 0,23 the noise ends in the moment the valve snaps back.

If you hear fot those 5 seconds a knocking sound it is very shure that there is a problem with that solenoid, the valve or electronics.

I hope you understand me, sorry. :)"

Guest [Entry]

The brew group needs to be repaired by replacing the seals and cleaning it. Kits and instructions are available.