Samsung Refrigerators2013–present
Error Code 46Er
I/O expander module is not communicating
Critical
Stop using immediately - risk of damage or safety issue
Also displayed as: 46Er displayed on panel
What This Means
I/O expander communication cable disconnected; I/O expander module defect; Main PCB defect
What actually causes this:
Control board I/O component failed
First Thing to Check
Check if any buttons on display respond
Parts Involved
Main PCBI/O Expander module
How to Fix
- 1
1. Check I/O expander communication connectors
- 2
2. Verify cable connections
- 3
3. Check for wire damage
- 4
4. Replace Main PCB (preferred solution)
This Error Applies To
Samsung RF23HCED Series Refrigerators (2013) (2013–present)
Service manual exact match: RF23HCEDTSRService manual exact match: RF23HCEDBSRService manual exact match: RF23HCEDBBCService manual exact match: RF23HCEDBWW