Self Diagnosis & Trouble Shooting; 6-1) If The Trouble Is Detected By Self-Diagnosis - Samsung RF18A Series Service Manual

CHECK THE INSTALLATION STATUS 6. SELF DIAGNOSIS & TROUBLE SHOOTING

6-1) If the trouble is detected by self-diagnosis

- The error of sensor will be displayed on the front of display. when the error of sensor is detected at initial power ON, the
appliance will not operated and display ofabnormal sensor part will blink.
- The appliance will not stop operating when the error of sensor is detected during operation of the appliance.
But normal freezing might be not operated if the appliance is operated by the emergency operation mode. You would
better to check the appliance according to the self-diagnosis of the manual.
1) If ICE Maker Sensor has troubled (check the other sensors in the same procedure)
ERROR Code
DATA1. Temperature table
** Measuring point of resistance value according to Sensor
** ICE MAKER : CN30 "9" ↔ "11" measuring resistance value
** 0Ω: Short trouble / Ω∞: Open trouble
Refer to circuit diagram in the manual
Sensor MICOM/Connector number
ICE MAKER : (F) CN30 "9"(WHT) ↔ "11"(WHT) measuring
resistance value
Voltage measured between 4.6V ~ 0.6V.
ICE Maker :
Measuring voltage of IC01 MICOM #12, CN30-"9"(WHT) and "11"
Pin(CN30) from PCB typical Ground part are similar.
→ Check the measure on the voltage of Resistance, R905 DUE to
the SMD MICOM.
ICE Maker
☞ Checking method of ICE Maker Sensor resistance
CN30 "9"(FLAT WHT) ↔ "11"(FLAT WHT) - Compare the temperature table after the measure.
☞ Checking method of ICE Maker Sensor resistance
- Measure the voltage of Resistance
ICE Maker : R905(IC01 MICOM #12) on PCB or CN30 "9"(WHT) and "11 Pin(CN90) from PCB
- Compare the temperature table after the measure.
Measuring voltage of ICE Maker : CN30 "9"(WHT) and "11" Pin(CN90) from PCB.
This document cannot be used without Samsung's authorization.
MAIN PCB Connector CN30 - "9"(WHT) MAIN PCB Connector CN30 - "9"(WHT)
and "11" Pin from PCB normal? and "11" Pin from PCB normal?
No trouble with PCB and temperature sensor.
Recheck the bad contact of the connection.
Start
Is MAIN PCB Connector
CN51 inserted correctly?
YES
Is ICE Maker Sensor Is ICE Maker Sensor
unit normal? unit normal?
YES
Is the voltage between Is the voltage between
YES
Is input voltage of Is input voltage of
IC01 MICOM #13 normal? IC01 MICOM #13 normal?
YES
86
NO
Bad contact of connector/
insert correctly
NO
Replace the temperature
sensor
(0.6V > Measurement < 4.6V)
NO
Recheck the wire
connection part
NO
Check the iced-solder, solder
bridging, disturbed solder.
PIN Number