4-1-2) Self-Diagnosis Function - Samsung RB31FEJNB Series Service Manual

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4. TROUBLESHOOTING

4-1-2) Self-Diagnosis Function

1) Self-Diagnosis Function upon Initial Power-On

1-1) When the unit is plugged into the power, MICOM diagnoses the status of the temperature sensors in a

few minutes.

1-2) If defective sensor is found after Self-Diagnosis, relevant Display LEDs will blink at an interval of 0.5

sec. and there will be no beeping sound. (Refer to the Self-Diagnosis Check List)

1-3) When there is a defective sensor found and its relevant LED blinks, it will only recognize the Self-

Diagnosis button combination and it doesn't do the normal display.

But, the temperature will be controlled with the Emergency Operation.

1-4) To cancel the error code, fix the failure of the defective sensor or cancel the Initial Self-Diagnosis

Function by pressing the Freezer and the Fridge buttons for 13 seconds.

2) Self-Diagnosis Function during Normal Operation

2-1) During the Normal Operation, press the Freezer + Fridge buttons for 7 seconds. Then, the "2℃, 3℃

and 5℃" Fridge temperature LEDs and the "-17℃,-19℃ and -21℃" Freezer temperature LEDs on the

Display Panel will blink at the interval of 0.5 seconds for 3 seconds. When pressing the Freezer and

the Fridge buttons at the same time for 10 seconds including the 3-second Display On/Off time, the

Fridge "3℃" and the Freezer "-19℃" Temperature LEDs will blink for 3 seconds with an interval of 0.5

second. At this time, when pressing the Freezer and the Fridge buttons at the same time for 13

seconds including the 3-second blinking time, it will send out a "Ding-Dong" buzzer sound and go into

the Self Diagnosis Function.

2-2) When it goes into the Self-Diagnosis, the entire display panel goes off and when there is an error

occurred, it will last for 60 seconds continuously and go to the normal operation whether or not the

error is fixed. (It sends out "Ding-Dong" sound) (Refer to the Self-Diagnosis Check List below)

2-3) Buttons won't work during Self-Diagnosis.

HOLD 13 SEC

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