20
TROUBLE SHOOTING
PROBLEM INDICATOR
CAUSE
SOLUTION
No water
coming out
of the tap:
Water flow
from spout
does not
stop:
Water flow
diminished
1.Sensor flashes
continuously when
user’s hands are within
the sensor’s range.
2. Red light in the sensor
does not flash (once)
when user’s hands are
within the sensor range.
3. Red light in the sensor
flashes once when
user’s hands are within
the sensor range.
1. Sensor flashes once
when user’s hands are
within the sensor’s range.
2. Red light in the
sensor does not flash
(once) when user’s
hands are within the
sensor’s range
Low battery.
1. Range is too short.
2. Range is too long.
3. Battery is completely
used up
4. Unit is in “Security Mode”*
5. Sensor is picking up
reflections from the
washbasin or another object.
1. Connectors between the
electronic unit and solenoid
are disconnected.
2. Debris or scale in solenoid
3. The central orifice in the
diaphragm is plugged or the
diaphragm is torn
4. The water supply pressure
is higher than 8 bar.
Debris or scale in diaphragm.
1. Sensor is dirty or covered.
2. Sensor is picking up
reflections from the
washbasin or another object.
Filter or aerator is clogged
Replace battery.
Increase the range.
Decrease the range.
The battery must be
replaced.
Eliminate cause of
reflection.
Connect the electronic
unit connectors to the
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.
Clean the orifice or
replace diaphragm.
Reduce the supply water
pressure.
Clean the orifice or
replace diaphragm.
Clean or eliminate case
of interference.
1. Decrease the range
or eliminate cause of
reflection.
Remove, clean, re-install
* “Security Mode”: If the sensor is covered for more than 90 sec. the faucet will automatically shut off water flow. To
return to normal operation remove any blockage to re-establish operation.
