How do I fix error code 46Er on my Samsung RF23HCEDBWW?

1. undefined: 1. Check I/O expander communication connectors 2. undefined: 2. Verify cable connections 3. undefined: 3. Check for wire damage 4. undefined: 4. Replace Main PCB (preferred solution)

Samsung RF23HCEDBWWRefrigerator

Error Code 46Er

Q: What does error code 46Er mean on a Samsung RF23HCEDBWW?

I/O expander module is not communicating I/O expander communication cable disconnected; I/O expander module defect; Main PCB defect

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)

Other Error Codes for RF23HCEDBWW

oP-Er or oP-Ch

Option communication lost

44Er

Main board can't communicate with compressor inverter

PC-Er or PC-Ch

Display panel can't talk to main control board

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