Samsung RF263 Series - C-Fan Motor FG Signal Error

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Error-code : 23 E
C-Fan Motor FG SIGNAL ERROR
Block
① Inspect UNIT COMP C-Fan
- Inspect CONNECTOR No.1~3 Pin contact/switching
② Inspect Fan Motor FG output : Main PBA CN76 No.9(BLU)+1(GRY) when Fan
rotate
- Normal : DC 2~4V
- Failure : DC 2V↓  Wire Open inspection  Replace Fan
CONNECTOR ※ Wire inspection
① Inspect Fan Motor
- Inspect CONNECTOR
No.3(WHT) + Main PBA
CN76 No.9(BLU) WIRE OPEN
- Inspect CONNECTOR
No.2(REL) + Main PBA CN76
No.5(S/BLU) WIRE OPEN
- Inspect CONNECTOR
No.1(BLK) + Main PBA CN76
No.1(GRY) WIRE OPEN
Main PBA
① Inspect normal condition
after replace it
Measure Main PBA CN76
No.1(GRY)+9(BLU) DC
voltage on CONNECTOR
contact and POWER ON
condition (Fan ON)
Normal: Measure DC 2~4 V
Failure : DC 2V↓, 4V↑
CN 76
1: GND(BLK)
2: VCC(RED)
3: F G (YEL)
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