If Ice Maker(F) Does Not Operate(Rfg238 Model) - Samsung RFG237AA Service Manual

TROUBLESHOOTING

4-2-5. If ICE MAKER(F) does not operate(RFG238 MODEL)

1. Water is automatically supplied to the Ice Maker depending on temperature & time condition and Ice
Maker Dispenses cubed or crushed ice.
2. Power is applied to the one end of wires. Be careful when disassembling and shall refer to its
exploded diagram in any case.
3. Ice Maker operation shall be checked after pressing the Ice Maker testing switch.
(Freezer Ice Maker) It is not possible to check when the power is disengaged.
4. We recommend that TWO PEOPLE check the PCB and Ice Maker because they are located at front
and rear side each.
ERROR Code
Micom(IC01) Operation Status
#37
(Test Switch)
Micom(IC01) Operation Status
Before
Ready Rotation
Complete
#39 5V 0V 5V
☞ Checking Method of ICE Maker Voltage With typical PCB Ground REG1 Heater Sink and
1) Test Switch operation(press selected) ; CN90-"5"(Gray) shall be DC 0V.
Test Switch ready ; CN90-"5"(Gray) Shall be less than DC 5V.
1) Test Switch operating
☞ Checking Method of ICE Maker Voltage With typical PCB Ground REG1 Heater Sink and
2) IC01 MICOM #39 voltage ; Ready(0V)
* MICOM #39 voltage is same as Connector CN90-"7"(Purple)
Maker Rotate when pressing the Ice Maker
Ready Operation
5V 0V
Returning Ready
0V 5V
supplied in 6 minutes(After sensing ice
No trouble with PCB and temperature sensor,
Check the bad wiring connections.
1) Test Switch ready
→ Rotate(0V) → Before complete(5V) → Return(0V)
Start
Is the checking location by
self sensing when initial Power ON?
YES
Does ice
testing switch?
YES
Is the input voltage of IC01
MICOM #39 normal?
YES
Is the water
bucket fully?
YES
Is the ice Maker Sensor
unit normal?
→ Ready(5V)
79
NO
1) Check the wiring connections
2) Check/Replace the Ice Maker kit.
NO
1) Check/Replace the Ice Maker kit.
NO
1) Check the wiring connections
2) Check/Replace the Ice Maker kit.
3) Check/Replace the main PCB
NO
1) Replace the Water Valve
* Refer to the operation condition of Water valve
NO
1) Repair the ice Maker
* Refer to the solution If ice Maker Sensor has
trouble.
typical PCB Ground
REG1 HEAT-SINK