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Problems
Symptom
Defective
Buzzer rings
Trouble mode indication.
display button.
but key does
function when
button is
pressed.
Bad water/ice
Buzzer
Defective connecting lead wire from
dispenser.
continuously
main PCB to door switch.
rings or door
Defective freezer compartment door
open alarm
switch parts.
does not work.
Ice and water
Defective connecting lead wire from
do not
Main PCB to lever switch.
dispensed.
Defective lever switch parts
Defective photo coupler IC parts.
Defective relay associated with ice
dispense (geared motor, cube and
dispenser solenoid).
Defective parts associated with ice
dispenser (geared motor, cube and
dispenser solenoid).
Defective relay associated with water
dispenser.
Defective parts associated with water
dispenser.
Causes
Check problem diagnosis function.
Check lead wire associated with door
switch.
Refer to door switch in parts repair
guide.
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 when lever switch
pressed. It is OK if voltage change is
from 0V - 5V.
Check relay (RY9, RY11, RY12)
with a tester.
Check resistance of parts with a tester.
Check relay (RY10) with a tester
Check resistance of parts with a tester.
Checks
Measures
Remedy faults
Repair lead wire.
Replace Freezer
compartment door
switch.
Repair lead wire.
Replace photo
coupler IC or PCB.
Replace defective
relay.
Replace defective
parts.
Replace defective
relay.
Replace defective
parts.
Remarks
Refer to mode
indication in
function
explanations.
Check model
with dispenser.
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