Grohe 4005176211911, Manual, Page: 9 / 88

6
Fault/ cause/ remedy
Fault Cause Remedy
No flushing • Water supply interrupted - Open isolating valve in wall connection
box
• Filter in solenoid valve blocked - Clean or replace filter,
see Cleaning or replacing filter
• 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 accessories 36 407)
• Solenoid valve defective - Replace solenoid valve,
see Replacing solenoid valve
• Transformer faulty - Replace transformer,
see Replacing transformer
• Electronics defective (indicator
lamp not flashing or permanently on)
- Replace electronics,
see Replacing the top plate
with electronics
Water flowing continuously • Solenoid valve defective - Replace solenoid valve,
see Replacing solenoid valve
Undesired flushing • The detection zone of the sensor system
is set too high
- An opposite object will be detected.
Reduce detection zone using remote
control (special accessories 36 407).
Flow volume too low • Flow volume set too low - Adjust flow volume,
see Setting the flow volume
• Filter in solenoid valve blocked - Clean or replace filter,
see Cleaning or replacing filter
• Solenoid valve defective - Replace solenoid valve,
see Replacing solenoid valve
Flow volume too high • Flow volume set too high - Adjust flow volume,
see Setting the flow volume
• Solenoid valve defective - Replace solenoid valve,
see Replacing solenoid valve