58300000111195_ARA_en_f.doc – 02.06.09
Seite 74 von 102
7.1.2 Drawing
coffee
Complaint
Cause?
Remedial action
Coffee has no “crema”
►
Unsuitable coffee or beans no longer fresh
►
Change coffee or use fresh beans
►
Grinding unit setting not adjusted optimally to
coffee beans
(Layer of froth)
►
Brewing system dirty
►
Adjust grinding unit setting. (Change degree
of grinding only while the grinding unit is
running)
►
Run descaling and cleaning programmes
Coffee levels differ
– when simultaneously filling
two cups (> +/– 15%)
►
Appliance not level
►
Outlet distributor dirty or defective
►
Place appliance on a level base
►
Replace outlet distributor
►
Hose system or drainage valve leaking
►
During a brewing process check hose system
and drainage valve for leaks
– when drawing several cups
in succession
►
Drainage valve leaking due to coffee dregs
►
Run descaling programme
►
Replace drainage valve
►
Incorrect pulsing from flowmeter
►
Check hose system between flowmeter and
pump. If hose length = 6 cm replace hose
with kit mat. no. 49 3828 (hose = 22 cm)
Coffee is only dripping out
►
Degree of grinding setting too fine
►
Set a coarser degree of grinding.
– tastes too bitter
►
Coffee ground too finely
►
Use coarser ground coffee or reduce dosage.
►
Brewing filter blocked or silted up
►
Clean brewing filter or run cleaning pro-
gramme.