Malfunction 4 jura s9 - Jura Capresso Impressa S9 Coffee Maker/Espresso Machine

SOURCE: Jura Capresso Impressa S9 water won't pull into the unit

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SOURCE: Our Jura x7 is showing Malfunction 4. What does

Hi Error 4 is the following fault :STEAM: Temperature sensor notify “value above tolerance” I think only a trained engineer could fix this unfortunately. Hope it helps though. Alison

Testimonial: "Thanks Alison, will get tech out since there is nothing we can do. Thanks for the info. Jim"

SOURCE: Jura Capresso Impressa S9- no steam

I had a similar problem. I took off the side and rear cover, followed the hose that comes from the steam wand to the rear of hte unit. It enters a solenoid made by ACL Italy. I dismantled the solenoid unit by disconnecting the two hose ends, removing the relay, and unscrewing the plunger unit (vertical pipe). The plunger unit internals should move freely up and down like a piston in a cylinder , powered by a small spring. In my unit, this plunger was calcified and seized. I soaked it in boiling water and pressed on it gently several times and it unstuck. I put it all back together again and presto! Good luck

SOURCE: My Jura Capresso Impressa S9

Hi,

This error is due to the coffee sludge built up in the system and needs you open the machine and clean it.

Note - Capresso recommends that you unplug the unit, wait a minute, and then plug in and turn on. Try twice if the first time doesn't work. If you still have a problem, call Capresso, and if your machine is under warranty they will repair it for you free of charge and even pay shipping both ways.

For cleaning instructions, let me provide you with a generic link that would help you :

http://www.buessert.de/Technik/Jura-IMPRESSA-S95/Cleaning.htm

Good Luck!!

Thanks!!

SOURCE: how do I fix a 'storing 4' (error 4 in Dutch)

error 4 is the ntc sensor on the top thermoblock
change it and the machine will be fine
to check just measure the resistance of the sensor , it should be 12Kohms with room temperature.... the warmer it gets the less resistance
a other quick way to check it is changing it with a resistor of around 330 ohms
the machine will work properly only it thinks the temperature is good while it may not be warm enough yet

to reset the error press the 2 middle buttons for a few seconds while in standby mode