Error Code IO-EXPANDER-COMM-ERROR
Internal PCB communication chip has failed
Critical
Stop using immediately - risk of damage or safety issue
Also displayed as: Specific LED blink pattern
What This Means
Failed Main PCB; PCB solder defect around IO expander chip
What actually causes this:
An internal chip on the main circuit board that handles input/output signals has failed.
First Thing to Check
Try power cycling the refrigerator.
Parts Involved
How to Fix
- 1
Replace Main PBA per service manual guidance
This Error Applies To
Samsung RF25C5 Series Refrigerators (2022) (2022–present)
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