LG GR-F218 Service Manual page 28

8-1-15 Defect Diagnosis Function
1. Automatic diagnosis makes servicing the refrigerator easy.
2. When a defect occurs, the buttons will not operate; but the tones, such as ding, will sound.
3. When the defect CODE removes the sign, it returns to normal operation (RESET).
4. The defect CODE shows on the refrigerator and freezer display.
✽ LED check function: If press and hold the warmer key of refrigerator temp and the warmer key of freezer
temp for a second, all display LED graphics on. When you release the buttons, the LED graphics displays the
previous status.
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