![Stern Engineering FREE 113100 Installation And Maintenance Manual Download Page 8](http://html1.mh-extra.com/html/stern-engineering/free-113100/free-113100_installation-and-maintenance-manual_1375308008.webp)
12
TrOUbLeSHOOTINg
PRoBleM
INdICAtoR
CAuSe
SolutIoN
Valve does not
flush:
1. Sensor flashes
continuously when
the user is within the
sensor’s range.
Low battery.
Replace battery.
2. LED in the sensor
does not flash when
the user step within
the sensor’s range.
1. Range is too short.
Increase the range.
2. Range is too long.
Decrease the range.
3. Battery is completely used up
The battery must be
replaced.
4. Sensor is picking up reflections
from the washbasin or another
object.
Eliminate cause of reflection.
3. LED in the sensor
flashes when the
user step within the
sensor’s range.
1. Connectors between the
electronic unit and solenoid are
disconnected.
Connect the electronic unit
connectors to the solenoid.
2. Debris or scale in solenoid.
Unscrew solenoid, pull out
the plunger and the spring
from the solenoid and clean
them. Use scale remover
material if needed. When
replacing the plunger, please
make sure that the spring is
in vertical position.
3. The central orifice in the
diaphragm is plugged or the
diaphragm is torn
Clean the orifice or replace
diaphragm.
4. The water supply pressure is
higher than 8 bar.
Reduce the supply water
pressure.
Valve does not shut
off:
1. Sensor flashes
when the user is
within the sensor’s
range.
Debris or scale in diaphragm
Clean the orifice or replace
diaphragm.
2. LED in the sensor
does not flash when
the user step within
the sensor’s range.
1. Sensor is dirty or covered.
Clean or eliminate case of
interference.
2. Sensor is picking up reflections
from the washbasin or another
object.
Decrease the range or
eliminate cause of reflection.