17
TROUBLESHOOTING
SOLUTION
CAUSE
INDICATOR
PROBLEM
Replace battery.
Low battery.
Sensor flashes
continuously when
user steps within
the sensor range.
Valve does
not flush
Increase the range.
1. Range is too short.
Red light in the
sensor does not
flash when user
steps within the
sensor range.
Decrease the range.
2. Range is too long.
Replace battery.
3. Battery is completely used up.
Eliminate cause of
reflection.
4. Sensor is picking up
reflections from mirror or other
object.
Connect the connectors
of the electronic unit to
the solenoid valve.
1. Connectors between the
electronic unit and the solenoid
valve are disconnected.
Red light in the
sensor flashes when
user steps within
the sensor range.
Unscrew solenoid,
pull out the plunger
and the spring from
solenoid. Clean them
with pressure or use
scale remover material if
needed.
2. Debris or scale in solenoid.
Clean the orifice or
replace diaphragm.
3. The central orifice in the
diaphragm is clogged or the
diaphragm is torn.
Reduce the water supply
pressure.
4. The water supply pressure is
higher than 8 bars.
Clean the orifice or
replace diaphragm.
Debris or scale in diaphragm or
the diaphragm is torn.
1. Sensor flashes
when user steps
within the sensor
range.
Valve does
not shut off
Clean or eliminate case
ot interference.
Sensor is dirty or covered.
2. Red light in the
sensor does not
flash when user
steps within the
sensor range.
Decrease the range
or eliminate cause of
reflection.
Sensor is picking up reflections
from mirror or another object.
