DeLonghi ICM18 WB instruction manual Descaling, Troubleshooting

DESCALING

If the water in your local area is hard, lime scale will form over time. These deposits may affect the correct operation of the appliance.

When the pilot light (10) starts flashing, the machi- ne needs to be descaled. The descaling process may be performed using special commercially- available scale removers for drip coffee makers. Alternatively, white wine vinegar can be used as follows:

1.Remove the chlorine filter.

2.Pour 2 cups of white wine vinegar and 3 cups of water into the tank. Place the tank in the coffee maker;

3.Place the carafe on the warming plate, do not put any ground coffee in the filter holder;

4.Press the drip coffee ON/OFF button, percolate the equivalent of one cup and then button off the appliance;

5.Leave the vinegar to sit for one hour;

6.Switch the coffee maker back on and percolate the rest of the solution;

7.To rinse the machine, operate it with water and without ground coffee at least 3 times (3

complete tanks of water).

Once the descaling operation is complete, press the “HOUR” and “MIN” buttons together to switch off the pilot light.

TROUBLESHOOTING

Problem Probable cause Solution

The drip coffee takes longer	The drip coffee maker needs to be	Perform the descaling procedure as
		described in the paragraph about
to percolate	descaled
		“Descaling”

The coffee has a vinegary taste

The coffee maker has not been rinsed sufficiently

Rinse the appliance as described in the chapter about “Descaling”

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