Grohe BLUE 31 312, Manual

Page: 5 / 16

2
English
If the Blue
®
handle is flashing red and E4 or E6 appears in
the display, the faucet 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.
• Blue ® handle synchronisation starts;
HC
appears in the
display and the Blue
®
handle lights up
red
.
• As soon as the Blue
®
handle lights up
green
, open the
faucet fully by turning the Blue
®
handle.
• As soon as the Blue
®
handle briefly flashes
green
, close the
faucet 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].
Open
Blue
®
handle
to draw off filtered GROHE Blue ® water.
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
®
handle:
The control unit of the GROHE Blue ® faucet is set for opera-
tion with the 159 gallons filter cartridge (Prod no.: 40 404 001)
at the factory.
For operation with the activ carbon cartridge (40 457 001) the
control unit must be set out.
Setting filter size
, see fold-out page II, Fig. [8].

button for filter size selection:
• Press and hold

button once until the currently setted
value (e. g. F1) flashes in the display
• Press the

button and select the required value appears
- F1: 40 404 000
- F2: 40 430 000
- F3: 40 412 000
- F4: 40 404 001
- F5: 40 430 001
- F6: 40 412 001
-
F7:
-
F8: 40 547 001 (Activ carbon)
• Press and hold the

button until the required value stops
flashing
• Release the

button:
The remaining filter capacity is displayed.
The faucet is now fully installed and ready for operation.
A filter system with water softener must be used in regions with
a carbonate hardness exceeding 10 grain/gal, see Replace-
ment parts, fold-out page I, Prod. no.: 40 404 001, 40 412 001
or 40 430 001.
For operation with this filter cartridges the carbonat
hardness must be set to the filter head and control unit:
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.
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
value (e. g. C3) flashes in the display
• Press the  button and select the required value:
- C4: carbonate hardness
≤
9 (bypass 3)
- Factory setting:
C3: carbonate hardness
10 - 25 (bypass 2)
- C2: carbonate hardness 26 - 30 (bypass1)
- C1: carbonate hardness
≥
31 (bypass 0)
• Press and hold the

button until the setted value stops
flashing
• Release the

button.
The remaining filter capacity is displayed.
The gallon capacity of the cartridge varies according to the
water hardness set and the size of the cartridge, see table on
fold-out page III.
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
flashing.
• Release the  button.
The remaining filter capacity is reset and then displayed
again.
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