Samsung SR-S20DTD - Continuous Alarm Troubleshooting

© When abnormality on defrost sensor of freezer occurs
Is insertion of
MAIN-PCB connector(CN30)
normal?
Repair contact badness on
connector(CN30) and un-
inserted part.
Is defrost sensor
x Reference 4 - ;
forging normal?
Replace temperature sensor
i$ connection
between defrost sensor and
‘onnector normal?
Repair the un-inserted
Connecter or contact badness.
Is voltage input o:
MICOM PIN#57 normal?
¥ Check cold lead, short and
No defect on PCB and temperature sensor. lead touch
Recheck connector contact badness
9-5) When alarm is continuously ringing )
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@ When Ding-Dong sound continuously occurs
|s there any
penetration of moisture to
door siw?
Do input voltages
of MICOM PIN #45, #46
hange?
(DOOR OPEN/CLOSE! : : :
Yy Repair cord disconnection and
badness DOOR S/W
Is insertion of N
MAIN-PCB connector(CN30)
normal?
N
Reference
- Alarm for freezer/Refrigerator door open continues for 10sec. at the initial door open. After 2 min. of
initial opening, it alarms for 10sec. by the min.
cycle when doer remains open (10 times of Ding-Dong sound).