Samsung RS2*3* manual Appendix ⅠReference for circuit diagnostics, Ref.2 Check SENSOR

Appendix Ⅰ(Reference for circuit diagnostics)

Turn on Power and check status of Relay & Driving Circuit by checking followings according to load operation.

LOAD	RELAY	TERMINALS	VALUE	WHEN IT IS DIFFERENT FROM MEASURED VALUE
	RY76 /RY75	CN71⑪∼⑨	SUPPLY	RY76 CONTACT SHORT,FAULTY DRIVING CIRCUIT
DEFROST / COMP OFF			VOLTAGE(SV)
	RY75	CN71⑬∼⑨	SV	RY75 NO CONTACT SHORT,FAULTY DRIVING CIRCUIT
	RY76 /RY75	CN71⑪∼⑨	SV	FAULTY RY75 /
COMP ON				RY76 NO CONTACT SHORT,FAULTY DRIVING CIRCUIT
	RY75	CN71⑬∼⑨	0V	RY75 NO CONTACT OPEN, FAULTY DRIVING CIRCUIT
	RY76 /RY75	CN71⑪∼⑨	0V	FAULTY RY76 /
DEFROST				RY75 NC CONTACT OPEN, FAULTY DRIVING CIRCUIT
	RY75	CN71⑬∼⑨	SV	RY75 NO CONTACT SHORT,FAULTY DRIVING CIRCUIT
CUBE & AUGER	RY73 /RY74	CN71⑨∼CN70③	SV	RY73 &RY74 NO CONTACT SHORT,FAULTY DRIVING CIRCUIT
MOTOR OFF	RY74	CN71⑨∼CN70①	SV	RY74 NO CONTACT SHORT,FAULTY DRIVING CIRCUIT
CUBE & AUGER	RY73 /RY74	CN71⑨∼CN70③	0V	RY73 OR RY74 NO CONTACT OPEN, FAULTY DRIVING CIRCUIT
MOTOR OPERATING	RY74	CN71⑨∼CN70①	0V	RY74 NO CONTACT OPEN, FAULTY DRIVING CIRCUIT
F FAN ON	RY79	CN71①∼⑨	0V	RY79 NO CONTACT OPEN, FAULTY DRIVING CIRCUIT
C FAN ON	RY77	CN71⑦∼⑨	0V	RY77 NO CONTACT OPEN, FAULTY DRIVING CIRCUIT
WATER VALVE	RY71	CN71⑨∼CN70⑦	0V	RY71 NO CONTACT OPEN, FAULTY DRIVING CIRCUIT
DISPENSER OPERATING
WATER VALVE ICE	RY72	CN71⑨∼CN70⑤	0V	RY72 NO CONTACT OPEN, FAULTY DRIVING CIRCUIT
MAKER OPERATING

Ref.2) Check SENSOR

Check after disassembling connected to MAIN PCB CN30 &CN32

Because it is NTC TYPE Sensor, risistance decreases as temp increases

1.Measure resistance between CN30 ⑧ and ⑨ for R-Sensor.

2.Measure resistance between CN30 ⑤ and ④ for F-Sensor.

3.Measure resistance between CN30 ⑥ and ④ for DEF-Sensor.

4.Measure resistance between CN30 ① and ④ for Ambient-Sensor.

5.Compare the above values with current temps of Sensoer locations and Part Spec in Manual and evalute them.

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