‐
CWH
520
23
Err25
Boiler
water
filling
malfunction
The
boiler
does
not
fill
within
the
allowed
time:
check
water
intake
tap,
dynamic
pressure
in
intake
system,
cleaning
of
water
intake
filter,
possible
damage
to
water
intake
hose
Or
check
in
this
order:
‐
boiler
pressure
switch
has
failed
(continuous
empty
reading)
‐
pipe
leaking/disconnected
(water
entering
pipe)
Err26
Boiler
emptying
malfunction
‐
check
that
rinsing
spray
arm
nozzles
are
clean
‐
boiler
pressure
switch
has
failed
(continuous
full
reading)
‐
pipe
leaking/disconnected
(water
entering
pipe)
‐
rinsing
pump
not
working
Err27
Boiler
emptying
malfunction
–
with
tank
full
Boiler
pressure
switch
has
failed
(continuous
full
reading)
Err28
Boiler
heating
malfunction
(overheating)
First
check:
‐
boiler
pressure
switch
has
failed
(continuous
full
reading)
‐
pipe
leaking/disconnected:
water
entering
pipe
connected
to
air
trap,
pressure
switch
continues
to
give
full
reading
even
with
boiler
empty,
heating
element
operating
dry
Or:
‐
circuit
board
relay
failure,
or
‐
contactor
failure
Содержание CWH520D
Страница 1: ...PROFESSIONAL DISHWASHER ...
Страница 12: ... CWH 520 12 Figure 1 Appliance electrical system diagram ...