Lennox Hearth IMPRESSA F50 - Manual (Page 21)

21
18. De-scaling
Your IMPRESSA features an integrated de-scaling program. The
de-scaling operation will take some 40 min.
JURA de-scaling tablets wich are specially designed for the
de-scaling program of your IMPRESSA are available at your
authorized dealer. Please note that machine defects or
residues in the water cannot be excluded if you use inappro-
priate de-scaling solvents.
If the IMPRESSA needs de-scaling, the corresponding mes-
sage is displayed.
You can still draw off coffee or hot water/steam and start the
de-scaling program later.
Before starting the de-scaling program, the machine must be
switched off. Once started, the de-scaling operation must not
be interrupted.
When using the de-scaling solvent, immediately remove any
splashes or drips from sensitive surfaces, i.e. natural stone
and wooden surfaces, or take appropriate precautions.
In any case wait until the de-scaling solvent is used up and
the tank is empty. Never refill de-scaling solvent.
Ⅲ
READY
DECALCIFY
Ⅲ Switch off the IMPRESSA using the ON/OFF key (3).
Ⅲ Remove hot water nozzle/2-stage frothing jet.
Ⅲ Press the maintenance key
(7) until the following message is
displayed:
Ⅲ
EMPTY
TRAY
Ⅲ Empty the tray
Ⅲ
NO –
TRAY
Ⅲ Insert the tray again.
Ⅲ
SOLVENT
IN TANK
Completely dissolve the content of one blister (3 tablets) in a jug
containing 0.5 litres of water, and fill the mixture in the water tank.
Reinstall the water tank.
Ⅲ OPEN TAP
SOLVENT
IN TANK
Ⅲ Put a sufficiently large container under the replaceable hot water
nozzle (16).
Ⅲ Open the steam / hot water draw-off valve (14) (Fig. 13).
Ⅲ
DE-SCALING
Ⅲ
CLOSE TAP
Ⅲ Close the steam / hot water draw-off tap (14).
Ⅲ
DE-SCALING
Ⅲ EMPTY
TRAY
Ⅲ Empty the tray
Ⅲ
NO –
TRAY
Ⅲ Insert the tray again.
Ⅲ
FILL
WATER
Rinse the water tank thoroughly and fill it with cold, fresh
tap water. Install it again.
E