Bosch TCA640 Series Repair Instruction page 72

7.2.1.3 Error 8
Error 8
Initialisation of the brewing unit has failed.
The brewing unit cannot be moved into the upper end
position.
This may be due to several causes, e.g.:
►
Incorrect operation – the brewing unit was filled
with too much preground coffee or with whole
coffee beans via the ground coffee slot.
►
Incorrect operation – cleaning tablet was inser-
ted too early and blocked the brewing unit.
►
Wrong coffee settings – too much, too finely
ground coffee.
►
Wrong grinding unit setting – grinding too coarse,
amount too large.
If the message does not go out when the appliance is switched off
and on again, disconnect the appliance from the power supply and
clean the upper filter in the brewing unit with a damp cloth (kitchen
roll). To do this, remove the drip tray and access the appliance from
the front. If required, re-adjust the grinding unit setting.
58300000120060_ARA_en_c.doc – 18.09.09 Seite 72 von 95