Klarstein Arabica Comfort Bedienungsanleitung Seite 28

EN
28
Descaling
Mineral deposits that accumulate inside the unit will affect the operation of the unit.
Your machine must be descaled if you notice an increase in the espresso brewing time
or if white deposits form on the surface of the brewing head. The frequency of cleaning
depends on the hardness of the water used. The table below lists the suggested cleaning
intervals:
Water hardness
Soft (filtered water)
Hard (from the tap)
To ensure that your coffee machine works efficiently, the internal piping is clean and the
taste of the coffee is retained, you should remove the remaining mineral deposits every
2-3 months.
1. Fill the tank with water and descaling solution to about 35 mm above the lowest
water level (MIN). The proportion of descaling solution used depends on the
operating instructions on the descaling solution. Only use special descaler solution
for coffee machines. If you do not have a descaling solution, you can use citric acid
instead. The ratio of water to citric acid is 100:5 (5% citric acid).
2. Fill the milk tank with descaler solution or 5% citric acid and place it in the machine.
Place a large cup (approx. 300 ml capacity) on the drip tray. Turn the foam tube
lever to direct the milk foam tube onto the cup. Press the on/off switch. The machine
starts to heat up and the indicator lamp lights up.
3. Attach the sieve holder (without coffee powder) to the brewing head. To brew
water, press the button for the large cup of espresso.
4. Press the [CLEAN] button to interrupt the brewing cycle. Leave the cleaning solution
in the machine for 20 minutes. Then press the [CLEAN] button to pump the cleaning
solution into the cup.
5. Repeat steps 3-4 at least 3 times.
6. Then press the [CLEAN] button again. The machine now pumps continuously, and
water and the remaining descaling solution in the water tank is completely sucked
out. Finish cleaning when there is no more cleaning liquid in the tank.
7. Then fill the water tank with clean water up to the MAX mark and do not put coffee
powder in the sieve holder. Repeat steps 3-4 then 5 times (step 4 need not be
interrupted for 20 minutes). Then press [CLEAN] again to remove all the water from
the tank. If the water or coffee still tastes sour, repeat the procedure if necessary.
Cleaning interval
Every 80 brewing cycles
Every 40 brewing cycles