Maintenance - Grohe Tectron 38 698 Manual

5. Again hold hand at a distance of approx. 5 - 10cm in front of
the sensor system.
The flow volumes are indicated via the indicator lamp in the
sensor system by groups of flashing signals separated by
a pause.
6. Flow volumes and display:
The number of flashing signals of the consecutive groups
corresponds to the following flow volumes:
- 3 = flow volume 3 litres
- Pause
- 4 = flow volume 4 litres
- Pause
- 5 = flow volume 5 litres
- Pause
- 6 = flow volume 6 litres (factory setting)
- Pause
- 7 = flow volume 9 litres
- Pause
After the group with 7 flashing signals, the routine starts
from the beginning.
7. Selecting the flow volume
The flow volume is selected by removing the hand from the
detection zone (at least 90cm) in the pause after a group of
flashing signals. Once the hand is removed, the fitting
immediately flushes with the selected flow volume (the
corresponding flashing signals are displayed again during
flushing).
8. The flow volume can be readjusted within the next 20 s,
if necessary, by again holding the hand at a distance
of 5 - 10cm in front of the sensor system (see point 5).
The selected flow volume is accepted as the new setting and
setting mode is automatically terminated if there is no hand in
front of the sensor system within 20 s of flushing. The area
directly in front of the sensor system must be kept free from
objects for these 20 s as otherwise the flow volume will be
unintentionally adjusted once more.
Additional functions of the WC fitting
With the remote control (Prod. no.: 36 206), the following
settings can be made and changed:
Switch on/off 72-hour flush
(factory setting: switched on)
1. Press and hold the RESET button.
2. Then additionally press the OFF AUTO button within 2 s.
The indicator lamp in the sensor system of the fitting flashes:
- 4 x short = 72-hour flush is switched on,
- 2 x long = 72-hour flush is switched off.
No-use flush interval: 72 hours.
Switch on/off intermediate flush
(factory setting: switched on)
1. Press the TEST button => test mode is switched on.
2. Press the OFF AUTO button as required.
The indicator lamp in the sensor system of the fitting flashes:
- 4 x short = intermediate flush is switched on,
- 2 x long = intermediate flush is switched off.
Setting mode is quit by pressing the TEST button,
or automatically after 60 s.
Switch on/off pre-flush
(factory setting: switched off)
1. Press the TEST button => test mode is switched on.
2. Press the ON AUTO button as required.
The indicator lamp in the sensor system of the fitting flashes:
- 4 x short = pre-flush is switched on,
- 2 x long = pre-flush is switched off.
7
Setting mode is quit by pressing the TEST button, or
automatically after 60 s.
Set minimum delay time
(factory setting: 7 s)
1. Press the TEST button => test mode is switched on.
Using the + and – buttons (
time can be increased (+) or reduced (–).
2. Press the + or – button (
The indicator lamp in the sensor system of the fitting
flashes:
- 4 x short = adjustment by one step (approx. 1 s),
- 2 x long = end position reached.
Setting mode is quit by pressing the TEST button,
or automatically after 60 s.

Maintenance

Inspect and clean all components and replace if necessary.
Use the cistern TPI to maintain the cistern parts.
Replacing the transformer
1. Switch off voltage supply, see Fig. [22].
2. Disconnect extension cable (L) from upper part (A2)
and disengage existing upper part of transformer (A2),
see Fig. [23].
3. Locate and engage new upper part.
4. Connect upper part (A2) to extension cable (L).
5. Switch on the voltage supply, see Fig. [22] (setting mode
is activated for 3 min.).
Shut off water supply.
Replacing the servo motor
1. Loosen locking screw (Y), see Fig. [24].
2. Remove plate (C) upwards from frame (R).
3. Detach lift rod (V1) from lever (X2), see Fig. [25].
4. Remove bracket with servo motor (X) from crossrail (O).
5. Disconnect plug connections from electronic module (C1)
to extension cable (L) and to servo motor (X), see Fig. [26].
6. Calibrate new servo motor, see Calibrating the servo
motor.
7. Install new servo motor, see Installing the servo motor.
8. Install the wall plate, see Installing the plate.
Replacing the wall plate with electronics
1. Loosen locking screw (Y), see Fig. [24].
2. Remove plate (C) upwards from frame (R).
3. Disconnect plug connections from electronic module (C1)
to extension cable (L) and to servo motor (X), see Fig. [26].
4. Remove screws (C2) and bracket (C3), see Fig. [27].
5. Replace old electronic module (C1) and install new
electronic module on plate (C) in reverse order.
6. Remove bracket with servo motor (X) from crossrail (O),
detaching lift rod (V1) from lever (X2), see Fig. [25].
7. Calibrate the servo motor, see Calibrating the servo
motor.
8. Install the servo motor, see Installing the servo motor.
9. Install the wall plate, see Installing the plate.
Replacement parts see fold-out page I
(* = special accessories)
Care
For directions on the care of this fitting, refer to the
accompanying Care Instructions.
button), the minimum delay
button).