NW511
20
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
tank
empty:
tank
pressure
switch
has
failed
(continuous
full
reading)
‐
with
tank
full:
drain
pump
failure
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
warewasher
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
dirt,
limescale
residues,
or
pieces
of
glass.
Never
use
tools,
screwdrivers,
scissors,
etc.
E.7
Boiler
heating
malfunction
(does
not
heat
up)
‐
circuit
board
relay
failure
‐
boiler
heating
element
faulty
or
"furred"
with
limescale
‐
boiler
temperature
probe
faulty
or
incorrectly
positioned
E.8
Tank
heating
malfunction
(does
not
heat
up)
‐
circuit
board
relay
failure
‐
tank
heating
element
faulty
or
"furred"
with
limescale
‐
tank
temperature
probe
faulty
or
incorrectly
positioned
E.9
Microprocessor
failure
Replace
circuit
board
Содержание NW511
Страница 1: ...PROFESSIONAL DISHWASHER...
Страница 12: ...NW511 12 Figure 1 Appliance single phase electrical system diagram...