58300000111195_ARA_en_f.doc – 02.06.09 Seite 73 von 102
7 FAULT DIAGNOSTICS
7.1 Malfunctions
7.1.1 Drawing coffee
Complaint Cause? Remedial action
Coffee temperature too low
► Cold cup or cold milk in the cup ► Prewarm cup or rinse out with hot water.
Heat milk.
(Measure coffee temperature
5–10 mm under coffee outlet!)
► Brewing system not prewarmed (1st coffee
brewing process after appliance switched on),
low amount of liquid (e.g. espresso)
► Prewarm brewing system; to do this open
and close ground coffee duct flap and start a
coffee brewing process.
► Rotate function selector briefly to draw
steam in order to increase the temperature.
► Appliance calcified ► Descale.
► Heater has heated up to steam temperature
Coffee temperature too high
► NTC temperature sensor defective
► NTC temperature sensor not screwed on
correctly
► Cool down heater by drawing hot water
► Replace NTC temperature sensor
► Tighten NTC temperature sensor
► Logic module defective ► Replace logic module
Coffee has too little aroma
► Grinding unit setting not optimum ► Adjust grinding unit setting. (Change degree
of grinding only while the grinding unit is
running)
► Unsuitable coffee or beans no longer fresh ► Change coffee or use fresh beans.
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