When Alarm Sounds Continuously Without Stop(Related With Buzzer Sound); If 'Ding-Dong'sound Continuously; If 'Beep-Beep' Sounds Continuously - Samsung RFG237AA Service Manual

TROUBLESHOOTING

4-2-9. When alarm sounds continuously without stop(related with buzzer sound)

① If 'ding-dong'sound continuously

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.)
Door & MICOM State
F
Door MICOM
(#83)
Close 5V(High)
Open 0V(Low)

② If 'beep-beep' sounds continuously

into the door switch?
Is the connector(CN30)
R MICOM(#82)
voltage of main #83 and #82
changed at door-open and close
Right and Left
0V(Low)
5V(High)
MAIN PCB & Door S/W is normal.
Recheck and replace Panel PCB
when power On again?
Recheck and Replace Panel
PCB
Start
Door is ajar
Is door closed
completely?
Is water penetrated
Is the door
switch unit normal?
inserted correctly?
Is the input
status?
Start
Is manual operation
/defrost selected?
Does buzzer sounds
84
Remove causes after comprehending
the conditions of interferance by door
gasket, food etc,
Replace Door S/W
Replace Door S/W
Connector is not inserted,
Repair disconnect part
Repair wire connection and
Door S/W
Enforce the cancelation the
manual operation/ defrost function
or power On after power Off
Normal