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LEDs blinking 0.5s

All applicable display LEDs blinking (0.5s interval) - sensor Error Detected During Self-Diagnostic

Samsung · Refrigerators

What does LEDs blinking 0.5s mean?

When the Refrigerator is first powered on, the self-diagnostic function checks temperature sensors. If a faulty sensor is detected, all relevant display LEDs will blink without any accompanying sound.

Common Causes

  • A bad temperature sensor in the Refrigerator.

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Note which display LEDs are blinking to identify the affected area.

  2. 2

    Consult the 'Self-diagnostic CHECK LIST' in your manual for further details.

  3. 3

    If the troubled sensor is corrected, the error can cancel automatically.

  4. 4

    Alternatively, press 'Power Freeze' + 'Power Cool' simultaneously for 8 seconds to cancel the error display and return to normal mode.

  5. 5

    If the issue persists, the sensor may need repair or replacement.

Browse all codes in this manual (117)
Verified technical data. Last updated: April 2026

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Source: Samsung Refrigerators
Open Manual (Page 31)Search more codes in this manual