WMF 900 - Page 83

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76
Problem Rectifi cation measure
Milk is too hot and too
little or milk foam has
bubbles
> Use refrigerated milk
> Check whether the milk tube is kinked or squashed.
> Re-fi t the milk tube again.
> Clean the All-In-One spout (Chapter “4.3.3 Clean the milk system” on
page 62).
> Ensure that the right milk nozzle is attached to the milk tube (brown for
refrigerated milk, transparent for unchilled milk).
> Check all connections and seals of the All-In-One spout.
It is diffi cult to insert
the water tank
> Apply WMF grease from the accessories to the O-Ring on the water
spout supports (Chapter “4.4.1 Lubricating O-Ring of the Water tank” on
page 66).
It is diffi cult to remove
the brewing unit and
reinsert it.
> Apply WMF grease from the accessories to the O-Ring on the water
spout supports (Chapter “4.4.2 Lubricating O-Ring of the Brewer Unit” on
page 67).
Pump is very noisy
> Check whether the water tank is completely pushed in.
> Deaerate the coffee machine by dispensing hot water until a constant
stream of water comes out.