Bosch TCA640 Series Repair Instruction page 15

3.5.4 Water filter
A water filter available as an accessory (mat. no.: 46 1732) can be
inserted in the water tank.
When approx. 50 litres of water have run through (corresponds to
approx. 400 brews) or after 2 months at the latest, the effect of the
filter is depleted. The filter must then be replaced. (Risk of bacteria!)
Insert filter into the water tank, then change the appliance settings
according to instructions enclosed with the filter.
Note:
►
Do not insert the filter if the red illuminated ring
around the calc button on the appliance is lit.
The appliance must be descaled first.
►
Before descaling the appliance, take the inserted
water filter out of the water tank.
►
If the appliance is operated with the water filter
always inserted, the appliance should be
descaled once or twice a year even if there is no
message displayed.
►
If softened water from a domestic softening
system is used, a water filter is not required.
►
If the system message FILTER CHANGE is
displayed, immediately replace or remove used
water filters. If no new water filter is inserted,
adjust the water hardness.
►
To activate the filter and ensure correct function,
the inserted filter must be rinsed. Observe the
following points.
58300000120060_ARA_en_c.doc – 18.09.09
3.5.4.1 Inserting the water filter
►
Select FILTER NO/OLD with the arrow buttons.
►
Press button P until the display flashes.
►
Select FILTER YES/NEW with the arrow buttons.
►
Press button P to save the setting.
►
Press exit button to return to brewing mode.
►
Press function switch to hot water. The appliance rinses the
filter automatically. Water is conveyed into the collecting
vessel (approx. 2 minutes). The water may be a little cloudy,
do not drink it!
►
If the system message PRESS WATER is displayed, press
the function switch again.
The appliance is ready for use.
►
The appliance must
switched on and ready to use.
►
Place a vessel with a capacity
of at least 500 ml under the hot
water nozzle.
►
Press and hold down button P
for at least 3 sec.
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