Samsung RF267AE** Troubleshooting, If Ice Maker does not operate, Operating Status of MicomIC01

Models: RF267AEPN RF267AEXAA RF267AEWP RF267AERS RF26XAEXAA RF26XAE** RF26XAEPN RF26XAERS RF267AE** RF267AEBP

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4-2-4. If Ice Maker does not operate

TROUBLESHOOTING

4-2-4. If Ice Maker does not operate

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.

5.Be careful! The Ice Maker Heater can cause personal injury like burn.

6.Ice maker could operate not only genuine rotate but also reverse rotate, so it is not out of order that reverse rotate.

Displays ERROR Code

 

 

 

 

 

 

 

Start

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Does Ice Maker

 

MICOM(IC02) Operation Status

 

 

 

 

 

 

 

 

rotate when pressing the Ice Maker

 

#37

Operation

Ready

 

testing switch(over 1.5 sec)?

 

(Test Switch)

 

5V

0V

 

 

Yes

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

MICOM(IC01) Operation Status

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Ready

Rotation

Before

Returning

Is the input voltage of IC01

 

Complete

 

 

 

 

 

 

 

MICOM #38,#39 normal?

#39

0V

4.9V

 

4.9V

0V

 

 

 

(Blade Ice Scoop)

 

 

 

 

 

 

 

 

 

 

Yes

#38

0V

0V

 

4.9V

0V

 

 

 

 

(Guide Ice Full)

 

 

 

 

 

 

 

 

 

Is the water supplied in 6

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

minutes (After sensing ice bucket

 

 

 

 

 

 

 

fully)?

 

Operating Condition when motor rotates

 

Operating Status of Micom(IC01)

 

 

 

 

 

 

 

 

Ready

Operation

 

Motor Load (#56)

0V

5V

 

Heater Load (#57)

0V

5V

 

 

 

 

 

Heater Load (#67)

0V

5V

 

Heater operates differently according to the conditions.

No

Test Mode operation will be 30 sec.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1)Replace the Ice Maker Kit

2)Check/Replace the Main PCB input signal

(Micom IC01 Pin #37 - “0V”)

No

1)Check the wiring connections.

2)Replace Ice Maker Kit

3)Replace MAIN PCB

No

Yes

1)Replace the Water Valve

*Refer to the operation condition of Water Valve

2)Replace the Main PCB

No

Is the Ice Maker Sensor unit normal?

 

Yes

1) Repair the Ice Maker Sensor

 

 

 

 

* Refer to the solution “If Ice

 

 

 

Maker Sensor has trouble”

No trouble with PCB and temperature sensor,

 

 

 

Check the bad wiring connections.

 

 

 

 

 

 

Checking Method of ICE Maker Voltage

With typical PCB Ground REG1 Heater Sink and

1)Test Switch operation (press selected) : CN75-”5” (Black) shall be DC 0V. Test Switch ready ; CN75-”5” (Black) shall be less than DC 5V.

1)Test Switch operating

2)Test Switch ready

Typical PCB Ground

 

 

REG1 Heater Sink

 

Checking Method of ICE Maker Voltage

 

 

With typical PCB Ground REG1 Heater Sink and

 

2)

IC02 MICOM #39 voltage ; Ready(0V)

Rotate (4.9V)

Before

 

complete(4.9V)

Return(0V)

 

 

 

* MICOM #39 voltage is same as Connector CN90-”7”(Purple)

3)

IC02 MICOM #38 voltage ; Ready(0V)

Rotate (0V)

Before

 

complete(4.9V)

Return(0V)

 

 

* MICOM #38 voltage is same as Connector CN90-”6”(Blue)

Check the ICE Maker Heater & Motor Resistance

1) Measuring the Ice Maker Heater

2) Measuring the Ice Maker Motor

resistance values

resistance values

CN70#11(Gray) - #1(Black)

CW : 13P #11(White) and CN70#9(Red)

CCW : 13P #13(Pink) and CN70#9(Red)

 

Resistance value : 91(364)Ohm 7%

CW/CCW Resistance value : 200KOhm ± 30%

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Samsung RF267AE** Troubleshooting, If Ice Maker does not operate, Operating Status of MicomIC01, 2Test Switch ready