Samsung RT53 Service Manual page 36

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TROUBLESHOOTING
4-1-2-2. Models with ROTARY S/W
1. When the unit is plugged in, it will diagnose all its components to check if there are any defect parts.
And when there is any defect part, the ERROR MODE DISPLAY LED LAMP will blink according to the LED
Blinking Frequency in the below table. And, at the end of each blinking cycle, there is a two-second
interval (Downtime).
2. When the unit is plugged in, it will also diagnose if there are any multiple parts or loads failures. If so,
ERROR MODE DISPLAY LED LAMP will blink according to the LED Blinking Frequency in the below table.
And, at the end of each blinking cycle, there is a two-second interval (Downtime).
No
Frequency
1
2
3
4
Hotpoint,Mba
4033 Cv
LED
Blinking Item
Connector Slipped-Out or Open- Contact,
Wire Cut or Short-Circui t ed, Abnormal
F-DEF –
Twice
SENSOR
Sensing Temp (higher than +65℃ or lower
than -50℃)
Connector Slipped-Out or Open- Contact,
Wire Cut or Short-Circui t ed, Abnormal
EXT –
3 times
SENSOR
Sensing Temp (higher than +65℃ or lower
than -50℃)
[ Freezer Defrost Heater ]
Connector Slipped-Out or Open- Contact,
Wire Cut or Short-Circui t ed, Defective
F-DEF-
5 times Thermistor
ERROR
Freezer Defrost When the defrosting does
not complete even after it does defrosting
for more than 120 minutes
Connector Slipped-Out or Open- Contact,
Wire Cut or Short-Circui t ed, Abnormal
6 times R-SENSOR
Sensing Temp (higher than +65℃ or lower
than -50℃)
PBA-Rotary Switch Slipped-Out or Open- The voltage between MAIN PCB CN30-
RELATED TITLES
LG_MULTI_F_3828A20097W_1[1]
Description
The voltage between MAIN PCB CN30-
"4(RED)" ↔ CN76 -"1(Gray)" should be
within 0.5V~4.5V.
The voltage between MAIN PCB CN31-
"1(WHT) ↔ 2(WHT)" should be within
0.5V~4.5V.
The voltage between MAIN PCB CN30-
"4(RED)" ↔ CN76 -"1(Gray)" should be
within 0.5V~4.5V.
The voltage between MAIN PCB CN30-
"5(ORG) ↔ 7(Gray)" should be within
0.5V~4.5V.
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Samsung 34648123
Refrigerador WD856UH
Trouble Shooting