93
TROUBLESHOOTING
③
If buzzer does not sound
Buzzer is installed on the panel PCB in this model.
If buzzer does not sound even though the button is pressed, manual operation is started and door is
opened, it should separate panel PCB and check the breakage of buzzer and bad soldering.
It is very hard to repair the panel PCB because it consists of SMD assemblies.
It is recommended to replace PCB assembly when the failure associated with panel is occurred
except the minor error such as switch pressing error, surface peeling off and so on.
Start
Did lead of
a component fall on the vibration
plate of buzzer?
Is there any
damage or breakage of the buzzer in
the panel PCB?
Does it sound
'dingdong' if press a button
on the front panel?
Does it make a sound
of door open alarm when you are opening the
door of freezer or Fridge more than 3
minutes?
MAIN PCB normal, BUZZER normal
Check the panel PCB with reference
of <how to check Panel Display>
Replace Panel PCB
Replace Panel PCB
Recheck the button pressing
force and mechanical problem
