Samsung RM255BASB, RM255BABB If the buzzer doesn’t sound, Main PCB is normal, buzzer is Normal

DIAGNOSTIC

3)If the buzzer doesn’t sound

This model is equipped with the buzzer on the Panel PCB. If buzzer doesn't sound in case of button operation, forced operation or door opening, separate the panel PCB first to check if buzzer is broken or there are any soldering failures.

It is not easy to troubleshoot it as the Panel PCB is made with SMD parts. You are strongly required to replace the assembly with a new one, unless the failure is not serious, for example S/W pressing failure, surface part come-off, etc.

Start

YES

Does it sound Ding-Dong’ if you press a button on front panel?

NO

Does it make a sound of door-opening’

alarm when you are open the doors of freezer or

fridge for more than 2 mins.?

NO

Is there a bent, go-out, or any other failure of the buzzer in the panel PCB?

NO

Did a component lead fall on the

vibration plate of buzzer?

Main PCB is normal, buzzer is

normal.

YES

Check the panel PCB according to , how to check panel display’.

YES

Buzzer is broken – – replace it.

YES

NO

Recheck for button pressing power and

framework problem.

Replace buzzer or panel PCB.

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