Samsung Refrigerators
Error Code 46Er
I/O expander chip not communicating
Moderate
Address soon - your appliance may not work properly
Also displayed as: 46Er
What This Means
I/O expander to main MICOM communication error; Cable disconnection; Connector contact error; I/O expander failure; Main PCB malfunction
What actually causes this:
The I/O expander chip that manages input/output signals is not communicating with the main board. The main PCB needs replacement.
First Thing to Check
Check the I/O expander connector on the main PCB for loose connection.
Parts Involved
Main PCBI/O Expander IC
How to Fix
- 1
Verify I/O expander connector on main board
- 2
Check connector contact
- 3
Inspect wiring
- 4
Test with self-diagnosis
- 5
Check PCB soldering
This Error Applies To
Samsung RS28A500A Series Refrigerators
Service manual exact match: RS28A5F61**Service manual exact match: RS28A5000**Service manual exact match: RS5300TService manual exact match: RS23A500A**Service manual exact match: RS28A500A**Service manual exact match: RS5300TC