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P
o r
b
e l
m
s
S
y
m
p
o t
m
Defective
Buzzer does
display button.
not sound
and buttons
do not operate.
Buzzer
Door Buzzer
o c
t n
n i
u
o
s u
y l
m
rings or door
o
p
e
n
n i
g
l a
r a
m
s
does not work.
Bad water/ice
Ice and water
dispenser.
are not
dispensed.
d
dispenser solenoid).
d
dispenser solenoid).
dispense.
dispenser.
C
a
s u
s e
Trouble mode indication.
Defective connecting lead wire from
a
n i
P
C
B
o t
d
o
o
s r
w
c t i
. h
Defective freezer compartment door
w
c t i
h
p
r a
. s t
Defective connecting lead wire from
Main PCB to lever switch.
Defective lever switch parts
Defective photo coupler IC parts.
Defective relay associated with ice
s i
p
e
n
e s
g (
a e
e r
d
m
t o
r o
c ,
u
b
e
a ,
n
d
Defective parts associated with ice
s i
p
e
n
e s
g (
a e
e r
d
m
t o
r o
c ,
u
b
e
a ,
n
d
Defective relay associated with water
Defective parts associated with water
C
h
c e
s k
Check trouble diagnosis function.
Check lead wire associated with door
s
w
c t i
. h
Refer to door switch in parts repair
g
u
d i
. e
Check Lead Wire associated with lever
switch with a tester.
Refer to door switch in parts repair guide. Replace lever switch.
Check voltage change at photo coupler
output terminals with lever switch
pressed. It is OK if voltage change is
between 0V - 5V.
Check relay (RY4, RY5, RY12)
i w
h t
a
t
s e
e t
. r
Check resistance of parts with a tester.
Check relay (RY7) with a tester
Check resistance of parts with a tester.
M
e
s a
r u
s e
R
e
m
r a
s k
Repair troubles
Refer to mode
indication in
function
explanations.
Repair lead wire.
Check model
i w
h t
d
s i
p
e
n
e s
Replace Freezer
o c
m
a p
t r
m
e
t n
d
o
r o
switch.
Repair lead wire.
Replace photo
coupler IC or PCB.
Replace defective
e r
a l
. y
Replace defective
p
r a
. s t
Replace defective
relay.
Replace defective
parts.
. r
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