13
SERVICE CHECK LIST
* “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.
** In this case, the water flow will stop anyway after 90 seconds because of the security time.
SOLUTION
CAUSE
INDICATOR
PROBLEM
Replace battery.
Low battery.
1.Sensor flashes
continuously
when user’s
hands are within
the sensor’s
range.
No water
coming out
of the faucet.
Increase the range.
1. Range is too short.
2. Red light in
the sensor does
not flash once
when user’s
hands are
within the sen-
sor’s range.
Decrease the range.
2. Range is too long.
The battery must be replaced.
3. Battery is completely used up.
4. Unit is in “Security Mode”*
Eliminate cause of reflection.
5. Sensor is picking up reflections from the
washbasin or another object.
Unscrew the solenoid, pull out
the plunger and the spring from
the solenoid and clean them.
Use a scale remover material
if needed. When replacing the
plunger, please make sure that
the spring is in vertical position.
1. Debris or scale in solenoid.
3. Red light
in the sensor
flashes once
when user’s
hands are within
the sensor’s
range.
Clean the orifice or replace
diaphragm.
2. The central orifice in the diaphragm is
plugged or the diaphragm is torn.
Reduce the supply water
pressure or install a pressure
reducer valve.
3. The water supply pressure is higher than 8
bar (116 PSI).
Shut off water supply and un-
screw one of the flexible pipes
in order to reduce the pressure
that blocks the product.
4. The water supply pressure is under 8 bars
and yet the pressure in the faucet’s body is
higher. This situation could be caused by a
sudden increase in the water supply pressure
that the backcheck prevents from dropping,
even after water supply pressure drops under
8 bars.
Clean the orifice or replace
diaphragm.
Debris or scale in diaphragm
1. Sensor flashes
once when
user’s hands
are within the
sensor’s range.
Water flow
from spout
does not
stop.
Clean or eliminate case of
interference.
1. Sensor is dirty or covered.**
2. Red light in
the sensor does
not flash once
when user’s
hands are within
the sensor’s
range.
Decrease the range or eliminate
cause of reflection.
2. Sensor is picking up reflections from the
washbasin or another object.
Remove, clean, re-install.
Filter or aerator is clogged.
Water flow
diminished.
