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13
service & maintenance
SOLENOID MAINTENANCE
For long periods of non-use, a minimum activation of 1-2
times per day is recommended.
High frequency of use and high water supply pressures
reduce the service life of a solenoid.
If the solenoid is not working correctly or is leaking, go
through the following steps to service the solenoid. The
most common cause of solenoid malfunction is debris
getting caught inside, in which case the solenoid needs
to be dismantled and cleaned. Service kits including
replacement diaphragms are available.
TO ACCESS THE SOLENOID VALVE
1. Turn water supply off and activate the sensor to drain
water from the line. Turn power off to the sensor.
2. In most cases it is easier to remove the complete
solenoid valve from the installation to service it. Remove
the electrical connectors from the solenoid terminals,
undo the water connections on both the water inlet and
outlet of the solenoid, and remove the solenoid.
3. The solenoid can be disassembled and checked
for debris or damage to the diaphragm. Refer to
“Servicing the Solenoid” instructions below. Take note
of the location of the components so that it can be
reassembled later in the correct order.
4. Service or replace the solenoid and re-install into the
line. Push the cable connectors back onto the solenoid
terminals.
5. Turn power and water back on and test the tap.
SERVICING THE SOLENOID
Tools required: Spanner, T20 Torx Bit or Slotted Screw Driver
1. Remove the hex nut located on top of the solenoid.
SEE IMAGE 08
2. Remove the black coil body and plastic cover from
the core tube by sliding up.
SEE IMAGE 09
3. Using a T20 Torx screw driver (star bit) or a slotted
screw driver, remove the 4 Torx screws that are holding
the core tube. Use the correct size tool and take care
not to round the screws heads. Keeping in mind that the
plunger inside the core tube is spring loaded, dismantle
the valve with care. Take note of the order of parts
assembled.
SEE IMAGES 10, 11
4. Check seat and diaphragm for debris or any damage.
SEE IMAGE 12
IMAGE 08
HEX NUT
T20 TORX
4 x TORX
(T20) SCREWS
IMAGE 09
IMAGE 10
IMAGE 11
IMAGE 12
