Samsung RF267AEBP, RF267AE**, RF26XAERS, RF26XAEPN, RF26XAE** Troubleshooting, Ice ON, Ice OFF

TROUBLESHOOTING

4-2-3. If ICE Room Fan does not operate

-This refrigerator has BLDC FAN motor. BLDC motor is driven by DC7~12V.

-When COMP ON, normally operates with F-FAN motor.

-If there is any trouble, you should select the self-diagnostic function to check the trouble before power off.

-When pressing the ICE TEST S/W for a certain period of time (over 1.5sec), the function is accomplished. After beginning of TEST mode, Ice maker heater turns on for initial 2 minutes, if the

ice making temperature is below 0 .

- If it exceeds 0 , Ice maker heater turns on for initial 30 seconds.

- After Ice maker heater turns on for 30 seconds, it turns off and

then Ice maker motor turns on.

Start

Is COMPRESSOR ON ?

No

- As the Ice maker motor turns on, TEST MODE COUNT

operates. (6 minutes count)

Condition

Yes Execute manual operation

-Ambient temperature : 32 /75%

-Notch : 2 /38 (-19.0 /3.3 )

Initial full of ice bucket capacity : 794 g, 58ea

Ice Room control temperature

Ice ON	8.6 (-13 )
Ice OFF	26.6 (-3 )

Is the voltage between

MAIN PCB REG1 Heater Sink and

CN76-”2” (Black) around

DC7~12V? No

Is the Ice Room

temperature suitable for

the Fan working?

Yes

Yes

FAN works normally

No

Operation

temperature/ready

Reference

CN76 #6 will generate the pulse signal when motor rotates. These signals will be input into MICOM.

Unless signals are not input during motor operating, will be ON 10seconds after fan OFF. But if signals are not still taken, the above operation will be retried four times more. If signals are not taken continuously, the motor will be restarted after 10 minutes. This function is against the case that motor movement would be restrained by foreign matters like ice.

Does DC7~12V alternate

with below DC2V between MAIN PCB REG1

Heater Sink and CN76-”2”(Black)?

Yes

No

Replace MAIN PCB

FAN pulse voltage	Typical	PCB Ground
CN76-”6”(Pink)	REG1	Heater Sink

The voltage is variable due to pulse signal but measured about 2~3V with the Multi-Meter.

Display for checking the self-diagnostic function

Ice Room FAN ERROR

Predicted Cause

FAN-MOTOR troubles itself

Bad wiring connections.

Wrong Input of the fan motor rotation pulse

Checking method of Ice Room FAN Motor Voltage with the voltage between typical PCB Ground REG1 Heater Sink and Ice Room FAN ; CN76-”2”(Black) shall be less than DC 6~12V.

-Additional check if resistance values are different after measurement.

1)Ice Room - FAN

Typical PCB Ground

REG1 Heater Sink

69