Samsung SR-S20DTC - Troubleshooting: Defrost Function Failure

1.
At
the
initial
power
on,
cooling
operation
is
normally
carried
out.
However,
after
a
certain
time
passes
(when
defrost
time
comes),
badness
occurs
on
Refrigerating
and
freezing
work.
It
is
a
case
where
there
is
defect
on
defrost
part.
Checkout
whether
there
is
defect
on
defrost
system
by
Referring
this
trouble
diagnosis.
x Refer to 7-7 self-diagnosis
function of main function.
A Is F, R defrost
ay in wok sensor normal by
self-diagnosis?
Replace and repair the
corresponding sensor
Is F, R defrost
poe heater normal by
v elf-diagnosis?
Check temperature fuse, heater
itself, cord disconnection, cord
contact state
« Refer to load defect checkup on
this manual Ref 3.
Is temperature
of corresponding defrost sensor
Y below -5°C?
x Judge in accordance with Ref 4
and Ref 8 on this manual.
Perform forced defrost for F and R
oe simultaneously.
y
x Refer to 7-6) test function of the
main function.
Is power applied
to each defrost heater?
Reference
1.
Ifeach
EVA-SENSOR
of
F
room
and
R
room
has
open
or
short-related
defect,
electricity
does
not
flow
to
defrost
heater
and
it
returns
to
normal
operation
after
pause
time
passes.
Therefore,
if
the
period
when
defrost
heater
does
not
work
accumulates,
Refrigerating
and
freezing
badness
results.
2.
If
temperature
fuse
which
is
a
safety
device
is
turned
off,
or
defrost
heater
has
wire
disconnection,
or
relay
on
PCB
is
bad,
defrost
is
done
by
natural
temperature
rise.
In
this
case,
period
of
COMP
off
according
to
defrost
becomes
very
long
so
that
badness
on
Refrigerating
and
freezing
function
results.
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