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11
troubleshooting
PROBLEM
CAUSE
RECTIFICATION
Tap/ water continues to
flow
Tap does not turn off
Solenoid valve is installed
the wrong way round
Re-install valve correctly. Check
the direction of water flow is with
arrow. SEE IMAGE 02
Debris in solenoid valve
Take solenoid apart and clean
diaphragm. Refer to Solenoid
Maintenance section.
Solenoid diaphragm is
damaged
Replace solenoid diaphragm
or solenoid. Refer to Solenoid
Maintenance section.
Seat on solenoid body is
damaged
Replace solenoid.
An object is within sensor
range
Remove object in sensor range.
Tap/ water does not turn on
when hand is within sensor
range
Red LED does not light up in
the sensor lens
Power supply is off or
transformer is damaged
Turn power on or replace
transformer
Sensor is damaged
Replace sensor
Tap/ water does not turn on
when hand is within sensor
range
Red LED lights up in the
sensor lens
Water supply is off or
Thermostatic Mixing Valve
(TMV) has shut down
Check water supply and / or
TMV.
Solenoid cables connected
incorrectly
Connect cables correctly. See
IMAGE 07
Solenoid valve is damaged
Replace solenoid valve
Tap/ water turns off slowly
Debris in solenoid valve
Take solenoid apart and clean
diaphragm. Refer to Solenoid
Maintenance section.
Solenoid diaphragm is
damaged
Replace solenoid diaphragm
or solenoid. Refer to Solenoid
Maintenance section.
PROBLEM CAUSE RECITIFICATION
