Issue 17
page 7
Issue 17
page 7
6. MAINTENANCE
Competent persons must carry out all maintenance
work.
When the body lid has been removed , It is
recommended that a new body lid gasket be fitted on
re-assembly to ensure a steam tight seal. Damage to
the unit caused by incorrectly sealed gaskets that
should be replaced during maintenance is not
covered by the manufacturers warranty.
6.1 Scale
The solenoid valve is fitted with a removable filter at
the inlet point. This filter should be cleaned as
required.
Check the extent of scale formation on the element,
thermistor etc. (See parts identification drawings ).
Your Clipper 2 boiler incorporates an
integral scale
inhibitor. In general, independent users throughout the
country have benefitted from either a vastly reduced
scale build up, and / or much easier maintenance due to
the softer nature of the scale which does not adhere
rigidly to the internals of the machine. Please note that
this is not a scale eliminator and its effect will differ
according to the water quality in your area.
To ensure regular, trouble-free operation, periodically
check for scale inside the boiling chamber and around the
tap nozzle. The production of scale is a natural
phenomenon and some de-scaling may be required
within the first 12 months. This is not covered under the
product’s warranty as it is not a fault.
6.2 De-scaling
NB Do not over-
tighten the drain plug when re-fitting.
Allow the contents of the boiler to cool sufficiently for the
water to be removed safely using the drain plug (see fig.
7). The body can now be de-scaled
Fig 7
Scale deposits should be removed from all internal
surfaces, particularly the heating element, thermistor
pocket etc. by gently tapping or scrapping. If the deposits
are soft, use a nylon pad and flush out. Abrasive cleaning
materials containing scouring powders and detergents
must not be used, such materials can cause taste
problems. Chemical de-scalants must
only be used in
accordance with the manufacturer's instructions.
The element and thermistor can be replaced by removing
the back-nuts and washers and withdrawing from inside
the body.
IMPORTANT All chemical agents must be completely
flushed out to avoid taste problems, health risks and
possible signalling failures.
6.3 Replacing the Element and Thermistor
IMPORTANT: a new body lid gasket may be
required.
6.4 Replacing the Printed Circuit Board (PCB)
1.
2.
3.
4.
5.
6.
7.
IMPORTANT: both the main printed circuit board and
the Triac printed circuit board must be replaced as a
matched pair.
and secure it with the
single fixing screw.
Disconnect the wiring connections to the Main PCB
Remove the PCB by pulling it forward off the supports.
Disconnect the wiring connections to the Triac PCB(see
fig 8)
Remove the Triac PCB by releasing the fixing screw and
pulling it forward off the supports (see fig. 8 for location of
Triac PCB).
Apply a thin covering of heat transfer compound
(supplied) to the mounting platform of the new Triac PCB
and fit the new triac P.C.B. onto the two P.C.B. supports,
ensure it is positively located
Reconnect the Triac wiring connections, see the circuit
diagram on page9.
Position the main P.C.B. on the four supports, ensuring
that the P.C.B. is positively located.
Reconnect the P.C.B. wiring connections, see the circuit
diagram on page 9.
Triac PCB
Fig 8.
