Page 6 of 8 81424NZ June 2012 v1.01
Fault Remedy
Tap will not operate
Check electrical connections, Check fuses (mains models only), Check for input voltage (6VDC), Check / Clean
all connections, Check for cable damage, Dis-connect power supply and re-connect after 30 seconds, Check
water is on and flowing, Check solenoid valve is fitted correctly, Check valve for operation, Check for debris in
valve, Water pressure is too low / high check pressure reading.
Tap operates
in reverse.
(Runs when hands
are not present)
Reversed valve polarity (Contact manufacturer)
Tap operates
intermittently
Clean sensor lens with non-abrasive material only, Tap may be installed too close to a R.F. interference source,
Tap may be installed too close to very bright lighting or highly reflective surroundings,
Water pressure may be too low for valve to operate reliably (min 50kPa required),
Voltage too low check output supply (power supply unit or battery, Lithium only)
Trouble Shooting
In order to help preserve our environment we ask that you dispose of this product correctly. Please contact your local
city council for collection centre details.
End of Life Disposal
Maintenance
Replacement
rubber for
diaphragm
Valve Diaphragm Replacement
Isolate power and water supply.
Remove fixing clip on top of latching valve coil by levering up clip with screw
driver and clicking back until clip releases from shaft.
Lift coil, spring clip and spacer from latching valve shaft.
Carefully undo the 4 screws retaining the valve housing. When the last screw
is about to be released, grip the valve body and top section as it is spring
loaded.
Carefully separate the top section containing the spring and plungers from the
lower body. The diaphragm should now be visible. Lift it out of position.
Remove the centre plastic piece from the rubber diaphram. Fit the new
diaphram to the plastic centre. Replace it in the same orientation.
Re-assemble in the reverse of above. Note the position of all parts in the
diaphragm for correct assembly. To order quote Zenith part number 90279NZ
Diaphram Kit.
The valve will require periodic cleaning and servicing. please contact Zenith
for servicing.
For general cleaning do not use abrasive cleaners or materials, only use soap
and water or non-abrasive cleaners.
