Grohe Tectron 38 698, Manual, Page: 11 / 116

8
Fault/ cause/ remedy
Fault Cause Remedy
Indicator lamp on front
of electronics flashing
continuously after calibration • Obstacle during calibration - Perform calibration again, ensuring there
is no obstacle in the adjustment range of
the servo motor, see Maintenance,
Calibrating the servo motor
• Servo motor defective - Replace servo motor, see Maintenance,
Replacing the servo motor
No flushing • Water supply interrupted - Open isolating valve in cistern
• No voltage (indicator lamp on back of
electronics not flashing)
- Switch on power supply or check plug-in
connection or transformer defective, see
Maintenance, Replacing the transformer
• Electronics defective (indicator lamp not
flashing or permanently on)
- Replace electronics, see Maintenance,
Replacing the wall plate with electronics
• Servo motor defective (no rotation) - Replace servo motor, see Maintenance,
Replacing the servo motor
• Plug-in connector without contact - Attach plug-in connector
• The detection zone of the sensor system
is set too low/too high
- Increase/reduce detection zone using
remote control (special
accessory 36206)
Water flowing continuously • Outlet valve not closing - Adjust servo motor position, see
Calibrating the servo motor, or outlet
valve defective (repair, replace, observe
replacement part), see cistern
instructions
Undesired flushing • The detection zone of the sensor system
is set too high
- An opposing object is detected. Reduce
detection zone using remote control
(special accessory 36206)
Flow volume too low • Flow volume set too low - Adjust flow volume, see Setting the flow
volume
• Outlet valve does not lift fully out - Adjust servo motor position, see
Calibrating the servo motor
• Servo motor defective (incomplete
rotation)
- Replace the servo motor, see
Maintenance, Replacing the servo motor
• Residual flow rate too high - Push residual flow slider downwards, see
Preparations, Fig. [10a]
• Flow rate in cistern too low - Turn float of filler valve further upwards,
see Preparations, Fig. [8]
Flow volume too high • Flow volume set too high - Adjust the flow volume, see Setting the
flow volume