Samsung RF4287HABP/XAA - When Alarm Sounds Continuously Without Stop(Related with Buzzer Sound)

88
TROUBLESHOOTING
4-2-9. When alarm sounds continuously without stop(related with buzzer sound)
Start
Door is ajar
Start
Is door closed
completely?
Is water penetrated
into the door switch?
Is the door
switch unit normal?
Is the connector CN76
inserted correctly?
Is manual operation
/defrost selected?
Does buzzer sounds
when power On again?
Is the input
voltage of main #53,#52,#51
changed at door-open and
close status?
① If 'ding-dong'sound continuously
② If 'beep-beep' sounds continuously
Remove causes after comprehending
the conditions of interferance by door
gasket, food etc,
Replace Door S/W
Repair wire connection and
Door S/W
Normal
Recheck and Replace Panel
PCB
MAIN PCB & Door S/W is normal.
Recheck and replace Panel PCB
Seperate the door switch andcheck if
the measured value of unit is
changed from 0Ω to ∞Ω
according to switch ON/OFF.
* FF Door Switch is magnetic switch.
(It can be operated when door
magnet is combined with it.)
Replace Door S/W
Connector is not inserted,
Repair disconnect part
Enforce the cancelation the
manual operation/ defrost function
or power On after power Off
Door
FZ
MICOM(#53)
Mid Drawer
MICOM(#51)
FF
MICOM(#52)
Right and
Left
Door & MICOM State
Close
Open
5V(High)
0V(Low)
0V(Low)
5V(High)
0V(Low)
5V(High)
AW3 SM-EN 2011.3.31 2:56 PM 페 이 지 8 8 i n