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7 Maintenance
25
Limescale deposits may form in the water tank. To ensure correct
function of the machine, descale the water tank from time to time.
T Remove the water tank.
T If you use a CLEARYL Smart filter cartridge, remove this.
T Completely fill the water tank and dissolve 3 JURA descaling
tablets in it.
T Leave the water tank with the descaling solution for several
hours (e.g. overnight).
T Empty the water tank and rinse it thoroughly.
T If you use a CLEARYL Smart filter cartridge, insert this again.
T Fill the water tank with fresh, cold water and reinsert the tank.
Follow the steps below to switch the E4 from filter mode to
descaling mode.
T Remove the water tank.
T Turn the filter cartridge anticlockwise and remove it along with
the extension from the water tank.
T Fill the water tank and reinsert it.
T Press the f button.
The & symbol lights up brightly.
T Press the
]
(‘Large cup’) button several times until the ! symbol
lights up brightly.
T Press the s button to enter the program item.
The sss £ symbols light up brightly.
T Press the
[
(‘Small cup’) button so that the sss £ symbols
no longer light up brightly.
T Press the s button to confirm the setting.
E The setting must be confirmed within 20 seconds.
The sss £ symbols flash 3 times in quick succession. The
machine is now in descaling mode.
T Press the f button to exit programming mode.
Descaling the water tank
Switching the machine from
filter mode to descaling
mode
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