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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.
TRemove the water tank.
TIf you use a CLEARYL Smart filter cartridge, remove this.
TCompletely fill the water tank and dissolve 3 JURA descaling
tablets in it.
TLeave the water tank with the descaling solution for several
hours (e.g. overnight).
TEmpty the water tank and rinse it thoroughly.
TIf you use a CLEARYL Smart filter cartridge, insert this again.
TFill 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.
TRemove the water tank.
TTurn the filter cartridge anticlockwise and remove it along with
the extension from the water tank.
TFill 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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