Grohe Blue Pure 31345DC2 Manual page 10

If the Blue ® handle is flashing red and E4 or E6 appears in
the display, the fitting and control unit must be
synchronised as follows, see Fig. [8]:
• Press and hold the  and  buttons simultaneously until SE
flashes in the display.
• Press the  button until SE stops flashing.
• Release the  button, C- flashes in the display.
• Keep pressing the  or  button until H- flashes in the
display.
• Press the  button until H- stops flashing.
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• Blue handle synchronisation starts; HC appears in the
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display and the Blue handle lights up red.
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• As soon as the Blue handle lights up green, open the fitting
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fully by turning the Blue handle.
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• As soon as the Blue handle briefly flashes green, close the
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fitting by turning the Blue handle, HC flashes in the display.
• Confirm the setting by pressing the  button longer, HC
appears.
• Release the  button.
The remaining filter capacity is displayed.
Operation / Commissioning
Open lever in order to draw hot and cold tap water, see
fold-out page II, Fig. [9].
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Open Blue handle to draw off filtered GROHE Blue
Control unit, see fold-out page II, Fig. [8].
The buttons perform the following functions:
 Filter replacement reset
 Filter size selection
 Carbonate hardness adjustment
Display, see fold-out page II, Fig. [8].
In the inactive state, the remaining filter capacity is displayed
in percent.
Display of filter capacity in Blue
Flashing signal Meaning
                     Filter capacity of more than 10%
                      Filter capacity of less than 10%
Order filter cartridge
                 Filter capacity of less than 1%
Change filter cartridge soon
 No filter capacity
Change filter cartridge
immediately
Set carbonate hardness at filter head, see Fig. [10].
The relevant water supplier can provide information on the
carbonate hardness.
Set carbonate hardness at bypass setting of filter head to local
conditions, see table column A on fold-out page III.
5
Setting carbonate hardness on control unit, see table
column B on fold-out page III and Fig. [8].
 button for carbonate hardness adjustment:
• Press and hold the  button once until the currently setted
• Press the  button and select the required value:
• Press and hold the  button until the setted value stops
• Release the  button.
The liter capacity of the cartridge varies according to the water
hardness set and the size of the cartridge, see table on fold-
out page III.
The control unit of the GROHE Blue
with the 600 liter filter cartridge (Prod no.: 40 404 001) at the
factory.
For operation with other filter cartridges the control unit must be
set out.
Setting filter size, see fold-out page II, Fig. [8].
 button for filter size selection:
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water.
• Press and hold  button once until the currently setted
• Press the  button and select the required value appears
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handle:
• Press and hold the  button until the required value stops
• Release the  button:
The fitting is now fully installed and ready for operation.
Note: The various filter cartridges can be ordered at
www.grohe.com.
Maintenance
Resetting filter capacity after changing filter cartridge, see
fold-out page II, Fig. [8].
 button for filter replacement reset:
• Press and hold  button until rF flashes in the display.
• Release the  button and press again until rF stops
• Release the  button.
value (e. g. C3) flashes in the display
- C4: carbonate hardness
- Factory setting:
C3: carbonate hardness 10 - 24
- C2: carbonate hardness 25 - 29
- C1: carbonate hardness
flashing
The remaining filter capacity is displayed.
value (e. g. F1) flashes in the display
- F1: 600 liters 40 404 000
- F2: 1,500 liters 40 430 000
- F3: 3,000 liters 40 412 000
- F4: 600 liters 40 404 001
- F5: 1,500 liters 40 430 001
- F6: 3,000 liters 40 412 001
- F7: 600 liters 40 691 001 (Magnesium)
- F8: 3.000 liters 40 547 001 (Activ carbon)
flashing
The remaining filter capacity is displayed.
flashing.
The remaining filter capacity is reset and then displayed
again.
≤
9 (bypass 3)
(bypass 2)
(bypass1)
≥
30 (bypass 0)
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fitting is set for operation