Saeco AREA OTC SUPO48B Operation And Maintenance Manual page 27

Remove the tank from the machine and empty it.
Remove the small white filter from the tank and store
it in a dry place sheltered from dust.
Select "OK" and press the "OK" button. The following
screen is displayed:
Remove and empty the drip tray.
After emptying it, put the drip tray back into place.
Select "OK" and press the "OK" button. The following
screen is displayed:
Place a large container under the dispensing spouts
(hot water, coffee and cappuccino).
Select "OK" and press the "OK" button. The following
screen is displayed:
Pour 250 ml of descaling solution and 750 ml of water
into the water tank. Select "OK" and press the "OK"
button. The following screen is displayed:
The first descaling phase starts. Press the "OK" button
to pause the cycle. Press the "OK" button again to
resume the cycle. When the descaling solution in the
tank is finished, the machine requests to rinse the tank
with fresh drinking water.
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