Samsung RF267AERS, RF267AEBP Troubleshooting, If Pantry Sensor has trouble, Start, normal?

TROUBLESHOOTING

8) If Pantry Sensor has trouble

ERROR Code

2¢ (-17¡ ) is recommended 38¢ (3¡ ) is recommended

DATA1.

Temperature table

**Measuring point of resistance value according to Sensor **

Pantry : CN30#9 CN76#1 measuring resistance

	value	: Open trouble
** 0 : Short trouble /
	Refer to circuit diagram in the manual
	Sensor MICOM/Connector number
Pantry	Connector Cn30#9(White-black) to REG1
	HEAT-SINK PCB common Ground

Voltage measured between 4.6V ~ 0.6V.

Measuring voltage of IC01 MICOM #73,

CN30-"9"(White-black) and REG1, HEAT SINK from PCB typical Ground part are similar.

Check the measure on the SENSOR MARKING

#6(R314) due to the SMD MICOM

Start

Is MAIN PCB		NO
Connector CN30 and CN76 insert
correctly?
	YES
		NO	Bad contact of connector/ insert correctly
Is Pantry Sensor
normal?
	YES		Replace temperature sensor
Is the voltage between		NO(0.6V > Measurement < 4.6V)
MAIN PCB Connector CN30#9 (White-black) and
REG1, HEAT SINK normal?
	YES		Check the contact of PCB & Wire
Is the input voltage of IC01		NO	Terminal correctly.
MICOM Pin #73 normal?
	YES		Check the iced-solder, solder bridging,
			disturbed solder. Replace the PCB
No trouble with PCB and temperature sensor.
Recheck the bad contact of the connection.

Checking method of Pantry Sensor resistance CN30#9(White-black) CN76#1(Gray)

- Compare the temperature table after the measure

Checking method of Pantry Sensor voltage

- Measure the voltage of Sensor Check Point #6(IC01 MICOM #73) on PCB or CN30#9(White-black) REG1, HEAT SINK

- Compare the temperature table after measurement. Measuring voltage of CN30#9(White-black) REG1, HEAT SINK are as below

typical PCB Ground

REG1 HEAT-SINK

65