Error Code 46Er
Internal I/O expander chip on main board has a communication fault
Moderate
Address soon - your appliance may not work properly
Also displayed as: 46Er
What This Means
Defective Main PCB (I/O expander is typically integrated on Main PCB)
What actually causes this:
A chip on the main control board that handles additional input/output has failed.
First Thing to Check
Power-cycle the refrigerator to see if the error clears on its own.
Parts Involved
How to Fix
- 1
Replace Main PCB
This Error Applies To
Samsung DRF36C Series Refrigerators (2022) (2022–present)
Related Error Codes
Freezer temperature sensor is disconnected or out of range
Freezer evaporator fan is not running when it should be
Freezer defrost sensor is disconnected or reading out of range
Condenser fan motor in the machine compartment is not running
External temperature sensor is unplugged or has failed
Freezer defrost heater or safety cutout has failed or wiring is open
Fridge temperature sensor is disconnected or out of range
Humidity sensor is disconnected or out of range