EN
Operation
Rectifying malfunctions
Malfunction
Cause
Rectification
LED
flashes every
2 seconds, no flush
actuation.
Battery almost dead
1)
▶ Replace the battery. → See operation manual
970.123.00.0.
No LED is lit.
Control unit is in
standby mode
▶ Press the <TEST> button. Control unit shows
the current settings.
Battery dead
▶ Press the <TEST> button. Replace the battery
if nothing appears on the display. → See
operation manual 970.123.00.0.
Water is flowing from
the overflow.
Trap or discharge pipe
clogged
▶ Close the water tap.
▶ Clean and descale the trap. → See "Cleaning
and descaling the trap", page 22.
▶ Check the discharge pipe.
Discharge pipe doubly
trapped
▶ Remove the second trap.
Insufficient ventilation
pipe in the drainage
system
▶ Check the ventilation pipe in the drainage
system.
Does not flush.
Solenoid valve or
control unit defective
▶ Test the solenoid valve. → See "Checking the
set flush volume", page 20.
▶ Replace the control unit.
Battery dead
▶ Replace the battery. → See operation manual
970.123.00.0.
Pipe pressure too low
▶ Check the pipe pressure (0.2–10 bar).
Basket filter clogged
▶ Clean the basket filter. → See "Cleaning the
basket filter", page 21.
Water runs
continuously.
Solenoid valve or
control unit defective
▶ Close the water tap.
▶ Test the solenoid valve. → See "Checking the
set flush volume", page 20.
▶ Replace the control unit.
1)
Flush actuations will no longer take place if the battery is almost dead.
7703517835-1 © 01-2021
970.124.00.0(00)
19
