P
age
1
8
P
age
1
9
De-scale
To gain access to internals of the water tank, the body lid must be
removed. Remove the 4 screws, break the lid gasket seal and lift it
clear of the body.
Note
: W
henever
the
body
lid
has
been
removed
from
the
boiler
a
new
lid
gasket
may
be
required
to
ensure
a
steam-tight
joint.
D
amage
to
the
unit
caused
by
a
poor
lid
seal
is
not
covered
by
warranty.
S
cale
deposits
should
be
removed
from
all
internal
surfaces
,
particularly
the
heating
element
,
thermistor
and
level
sensors
by
gently
tapping
or
scraping.
I
f
the
deposits
are
soft
,
use
a
nylon
pad
and
fl
ush
out.
A
brasive
cleaning
materials
containing
scouring
powders
and
detergents
must
not
be
used
,
such
materials
can
cause
taste
problems.
S
uitable
chemical
de-scalants
must
only
be
used
in
accordance
with
the
manufacturer’s
recommendations.
T
his
will
prevent
health
and
safety
issues
,
taste
problems
and
potential
damage
to
the
appliance.
A
ll
trace
of
these
chemicals
must
be
removed
before
re-
commissioning
the
unit.
M
isuse
of
such
chemicals
is
not
covered
by
the
product
warranty.
IMPORTANT Before re-commissioning the boiler it is
important that all scale and moisture is removed from the
level sensors and insulating gaskets, to avoid a false signal
being transmitted through the scale to the boiler body. Failure
to remove this scale and/or moisture will cause the sensor to
indicate to the PCB that water is covering the element, whether
or not water is present. In this situation the PCB will energise
the element causing failure. If in doubt, protect the element by
hand fi lling with water to the level of the draw-off tap before
switching on the electrical supply to the boiler.
W
hen
the
red
service
indicator
light
on
the
front
of
the
boiler
is
illuminated
,
the
machine
has
been
starved
of
water
in
excess
of
2
0
minutes
and
the
solenoid
valve
has
been
disabled
to
prevent
damage
to
the
solenoid
coil
through
overheat.
T
o
re-energise
the
solenoid
,
the
unit
must
be
disconnected
from
the
electrical
supply
and
then
switched
back
on
,
after
fi
rst
reinstating
the
water
supply.
I
f
the
unit
requires
servicing
the
red
service
indicator
will
fl
ash
a
sequence
of
light
pulses.
A
2x
or
3
x-light
pulse
generally
indicates
that
the
low
or
normal
level
probes
require
de-scaling.
A
4x-light
pulse
means
the
water
level
has
reached
the
high
level
sensor
and
the
likelihood
is
that
the
normal
level
sensor
requires
de-scaling
,
or
the
machine
has
over-fi
lled
due
to
debris
trapped
in
the
solenoid
valve.
T
he
debris
can
be
removed
by
drawing
plenty
of
water
from
the
dispense
tap
,
causing
the
solenoid
valve
to
operate
and
fl
ush
out
the
obstruction.
T
he
machine
will
reset
itself
once
the
problem
has
cleared.
I
f
this
does
not
rectify
the
problem
,
turn
off
the
water
supply
and
check
for
debris
in
the
solenoid
valve
fi
lter.
T
he
unit
can
be
used
normally
while
the
service
indicator
is
fl
ashing
a
4x
pulse.
F
or
further
assistance
,
contact
our
service
department
on
0113
249
668
1
or
fi
nd
a
local
service
engineer
at
www.calomax.co.uk
Access to internal components can be gained by the removal
of the outer casing lid and front panel. Once the outer casing
is removed, access to the Service Area has been gained. This
access must be restricted to persons having knowledge and
practical experience of the appliance, in particular as far as safety
and hygiene are concerned.
SERVICE INSTRUCTIONS
