899079193583897099 © 03-2022
971.197.00.0(00)
Rectifying malfunctions
The operator can perform the following measures to rectify malfunctions:
• Clean the tap aerator
• Clean the basket filter
• Replace the batteries
• Charge the rechargeable battery for generator operation
These measures are described in the operation manual 970.664.00.0.
Malfunction Cause Rectification
Water jet too weak
Tap aerator dirty ▶ Clean the tap aerator. → See operation
manual 970.664.00.0.
Basket filter clogged ▶ Clean the basket filter. → See
operation manual 970.664.00.0.
Pipe pressure too low ▶ Test pipe pressure (0.5–10bar).
No flush actuation
Pipe pressure too low ▶ Test pipe pressure (0.5–10bar).
Network failure ▶ Check the power supply.
Batteries dead or rechargeable battery
empty
▶ Replace batteries or charge
rechargeable battery for generator
operation. → See operation manual
970.664.00.0.
Washbasin tap is in cleaning mode (red
LED flashes) ▶ Wait approx. 2minutes.
Detection distance not set correctly ▶ Optimise the detection distance.
Interfering reflections from the washbasin ▶ Optimise the detection distance.
Solenoid valve defective ▶ Replace the solenoid valve. → See
"Replace the solenoid valve", page 14.
IR sensor defective ▶ Replace IR sensor.
Control electronics defective
▶ Restart the control electronics. → See
Restarting the control electronics.
▶ Replace the control electronics.
Water runs
continuously
Interfering objects in the detection range ▶ Remove objects from the detection
range.
Solenoid valve defective ▶ Replace the solenoid valve. → See
"Replace the solenoid valve", page 14.
IR sensor defective ▶ Replace IR sensor.
Pipe pressure too high ▶ Test pipe pressure (0.5–10bar).
Control electronics defective
▶ Restart the control electronics. → See
Restarting the control electronics.
▶ Replace the control electronics.
Unwanted flow of
water, either too
soon or delayed
IR window is dirty or wet ▶ Clean or dry the IR window.
IR window scratched ▶ Replace IR sensor.
Detection distance of the IR sensor not
set correctly ▶ Optimise the detection distance.
IR sensor is being adversely affected by
influences in the room (mirrors, metal
surfaces, glass washbasins, etc.)
▶ Restart the control electronics. → See
Restarting the control electronics.
▶ Recalibrate IR sensor. → See Setting
the detection distance of the IR sensor.
Pressure fluctuations in the water net ▶ Install a suitable pressure regulator.
