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
Other Error Codes for RF25C5151SR
Refrigerator compartment temperature is abnormally high
Freezer defrost sensor is faulty and cannot detect when defrost is complete
Refrigerator humidity sensor is faulty
External ambient temperature sensor is faulty
Freezer evaporator fan motor is not running
Refrigerator compartment temperature sensor is faulty or disconnected
Ice Bites maker temperature sensor is faulty
Refrigerator compartment fan is not running