88 88
Samsung Display Self-Diagnostic / Power-On Test

All segments on the display show 88 88; refrigerator may be in self-diagnostic mode after power is restored.

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Safety Warning

This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.

If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.

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Possible Causes

Normal power-on self-test, Stuck display buttons, Display PCB glitch, Main PCB communication issue

How to Fix / Troubleshooting

Step 1 – Wait for self-test to complete:

  • After a power outage or reconnection, 88 88 may appear briefly as the display tests all segments.
  • Wait 1–2 minutes to see if the normal display returns.

Step 2 – Reset the control panel:

  • Press and hold Power Freeze and Power Cool for 8–10 seconds.
  • If the display does not return to normal, unplug the refrigerator for 5 minutes, then plug back in.

Step 3 – Check buttons and panel:

  • Ensure no buttons are stuck or jammed.
  • Wipe the panel clean and dry.

Step 4 – Professional service:

  • If 88 88 remains and the unit does not cool, the Display PCB or Main PCB may be faulty and should be replaced by a technician.
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Repair Difficulty

Medium 3/5

Required Part

Display PCB
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