‐
NWG410
‐
17
7 MALFUNCTIONS SHOWN ON THE DISPLAY (FOR
THE TECHNICIAN)
The
glassasher
is
able
to
identify
a
number
of
malfunctions
and
show
them
on
the
display.
If
the
problem
persists
after
the
glasswasher
has
been
switched
off
and
back
on,
proceed
as
described
below:
E.1
Boiler
temperature
probe
malfunction
Boiler
temperature
probe
disconnected
or
not
working
E.2
Tank
temperature
probe
malfunction
Tank
temperature
probe
disconnected
or
not
working
E.3
Water
intake
malfunction
Water
intake
not
completed
in
the
maximum
time
allowed
Check
dynamic
pressure
in
intake
system,
inspect
water
intake
filter
and
clean
if
necessary.
If
the
problem
persists:
‐
tank
pressure
switch
has
failed
(continuous
empty
reading)
‐
leak
from
pipe
connected
to
air
trap
‐
drain
siphon
blocked
‐
the
tank
is
empty
due
to
siphoning
when
the
drain
pump
is
not
running
E.4
Boiler
overheating.
Reduce
boiler
temperature
to
80°.
If
the
problem
persists,
the
circuit
board
relay
has
failed:
check
circuit
board
and
inspect
boiler
heating
element
for
damage
E.5
Tank
overheating.
Reduce
tank
temperature
to
58°.
If
the
problem
persists,
the
circuit
board
relay
has
failed:
check
circuit
board
and
inspect
tank
heating
element
for
damage
E.6
Water
not
pumped
out
of
tank
Inspect
the
filters
for
dirt
and
check
that
the
drain
hose
is
not
blocked,
bent
or
crushed.
Check
that
the
drain
pump
is
not
blocked
by
dirt
by
removing
the
insert
on
the
sump
(from
inside
the
tank)
If
the
problem
persists:
‐
with
the
tank
empty:
tank
pressure
switch
defect
(the
contact
is
locked
on
full)
‐
with
tank
full:
drain
pump
has
failed
If
the
system
fails
to
pump
out
because
the
drain
pump
is
fouled
(as
a
result
of
incorrect
filter
positioning),
proceed
as
follows:
Bale
out
the
glasswasher
with
a
basin
and
disconnect
it
from
the
electrical
mains.
Unscrew
the
screw
A
,
release
the
tang
B
and
lift
it.
Check
that
the
impeller
of
the
drain
pump
underneath
the
cover
turns
freely,
and
is
free
from
Summary of Contents for NWG410
Page 1: ...PROFESSIONAL DISHWASHER...
