Error Code 46
Main board lost contact with I/O expander
Critical
Stop using immediately - risk of damage or safety issue
Also displayed as: 46Er
What This Means
I/O Expander PCB failure; Main PCB failure; Communication cable disconnection; Connector contact failure
What actually causes this:
I/O expander module failed or got disconnected
First Thing to Check
Check the connector between main board and I/O expander
Parts Involved
How to Fix
- 1
Display 46Er indicates I/O expander communication issue
- 2
Check I/O expander module connection
- 3
Verify communication signal integrity
- 4
Test connector contacts
This Error Applies To
Samsung BRF425200AP Series Refrigerators (2019) (2019–present)
Related Error Codes
FlexZone compartment sensor failed
Pantry compartment temperature sensor failed
Outside humidity sensor is broken
Outside temperature sensor is broken
FlexZone defrost sensor is not working
Fridge temperature sensor is broken or disconnected
Fridge defrost sensor is not working
Freezer temperature sensor is broken or disconnected