Samsung RS68N Series Service Manual page 86

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PRECAUTIONS(SAFETY WARNINGS)
3) If a buzzer does not sound
This model has a buzzer on the Panel PBA. If the buzzer does not sounds when button is pressed,
Forced Operation, door open and disconnection with Main PBA, check out defective soldering on
PBA or buzzer damage. (It is recommended replacing Panel PBA if components are damaged)
※ It could be unable to hear in case there is heavy noise or built-in environment.
Start
"DingDong"
Sounds when a button on the
display panel is pressed
YES
Door alarm
sounds after any of doors
are open over 2 min.
NO
The Buzzer
surface is broken/bended.
Or Buzzer lead comes off from
the vibration plate.
NO
Check
the wiring - short / open
(buzzer ↔ Display in fridge)
NO
Check the button press force and
structural design (Door Sensing)
86
NO
Check & Replace a buzzer on
Panel PBA
YES
Normal
YES
Buzzer Breakage
Replace Buzzer.
YES
Repair the wire.