8.Rotate the selector knob to the 
position and run off the water until the tank is completely empty;
9.Rotate the selector knob to the
position and repeat operations 7 and 8 again.
Repair of damage to the coffee machine caused by scale is not covered by the warranty unless descaling is performed regularly as described above.
DESCALING THE DRIP COFFEE UNIT
Over time, calcium in the water may cause obstructions, reducing the efficiency of the coffee machine.
The coffee machine has a system to monitor the quantity of scale. When the scale builds up excessively, the ON/OFF coffee indicator light starts flashing. This means the appliance should be descaled.
To descale, always use special commercially available descaling products for drip coffee machines. If these products are not available, you can also follow the procedure below.
1.Pour four cups of water into the carafe;
2.Dissolve two spoonfuls of citrus acid (about 1 oz.) and pour the solution into the drip coffee water tank;
3.Place the carafe on the warming plate;
4.Press the drip coffee ON/OFF switch, percolate the equivalent of one cup and then switch off the appliance;
5.Leave the solution to work for 15 minutes. Repeat operations 4 and 5 again.
6.Turn the appliance on and run off the water until the tank is completely empty.
7.Rinse by operating the appliance with water only at least 3 times (3 complete tanks of water).
Failure to clean as described above invalidates the warranty.
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