Question about Jura Capresso Impressa S9 Coffee Maker/Espresso Machine
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
Posted on Jul 08, 2011
Hi, had the same issue and it seems to be that the most common reason is the temperature sensr (omega sensor) on top of the Thermoblock. I have a technical background and could easily resolve the problem within the X7. Remove backplane and slide away and remove the side cover where normally the water tank is.
on the left bottom you see the Thermoblock and on top a small round ThermoSensor (called omegasensor). Replaced this sensor and it all worked fine again, In case it still does not work, have also a look to the other thermoblock on the right bottom. There is the sensor of the T-Block. little bit more difficult to reach, but as long you do not lose your screw then it is do-able. If you hesitate then of course let a specialist do it for you. When it are only the Thermo sensors then the cost is low and not difficult to repair for the specialist.
Posted on Jun 15, 2012
Error 4 is the sensor for the top Thermoblock for steam, bad, open
Posted on Aug 25, 2010
The Jura has an on board computer that needs to be accessed by a Jura authorized service center, like some cars the service computer resets that error at a service, where it produces a diagnostic. Even as a Jura dealer they will not give me access to the protocol, so the answer at the moment is know, unless you would like to try and figure out the protocol
Posted on Feb 13, 2010
a 6ya Repairman can help you resolve that issue over the phone in a minute or two.
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Posted on Jan 02, 2017
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