Repair and disassembly guides for the Jura Capresso IMPRESSA J5 coffee maker.

8 Questions View all

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?

Answer this question I have this problem too

Is this a good question?

Score 1
Add a comment

2 Answers

Most Helpful Answer

Hello,

that sound is from the electric-magnet at the drainage-valve.

When the brewing stops, the fluidsystem would rinse through the nozzle

in the front and it would give many drops of coffee.

So this problem is solved by the drainage-valve, which lets the water out and air in

to stop the tripping.

The electric magnet knocks a steel-needle at a plastic cap which is mounted to

a metal axle in the valve which then opens.

Sometimes these Juras make awful humming noises while the electric-magnet

has current, too. - when these Juras get older.

As long as the knock sound and the humming is only hearable while the drainage-valve has

opened evverything is okay. :)

Friendly greets and good luck. :)

Was this answer helpful?

Score 1

Comments:

But when it rattles it could be a damaged valve.

by

The noise is a very regular knocking that lasts several seconds, so perhaps the solenoid (electric magnet) cycling repeatedly due to some fault...

by

Add a comment

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. :)

Was this answer helpful?

Score 1

Comments:

Add a comment

Add your answer

Bruce Covell will be eternally grateful.
View Statistics:

Past 24 Hours: 1

Past 7 Days: 5

Past 30 Days: 30

All Time: 277