How do I fix error code 46E on a Samsung refrigerators?

1. undefined: Check I/O Expander wiring and connectors 2. undefined: Verify connector seating 3. undefined: Check for water penetration 4. undefined: Replace Main PCB if wiring confirmed good

Samsung Refrigerators2013–present

Error Code 46E

Q: What does error code 46E mean on a Samsung refrigerators?

I/O Expander communication failure Wire disconnection or short in I/O Expander circuit; Defective I/O Expander IC or Main PCB

I/O Expander communication failure

Critical

Stop using immediately - risk of damage or safety issue

Also displayed as: 46E

What This Means

Wire disconnection or short in I/O Expander circuit; Defective I/O Expander IC or Main PCB

What actually causes this:

Wiring vibrates loose, I/O Expander IC fails, or PCB solder joint cracks

First Thing to Check

Check I/O Expander connector seating on Main PCB

Parts Involved

Main MICOM PCBI/O Expander ICI/O circuit wiring

How to Fix

1
Check I/O Expander wiring and connectors
2
Verify connector seating
3
Check for water penetration
4
Replace Main PCB if wiring confirmed good

This Error Applies To

Samsung RS22HDHPN Series Refrigerators (2013) (2013–present)

Service manual exact match: RS22HDHPNBC/AAService manual exact match: RS22HDHPNWW/AAService manual exact match: RS22HDHPN**Service manual exact match: RS22HDHPNSR/AA

Related Error Codes

Fridge sensor failure or wiring issue

71E

Freezer temperature critically high

83E

Compressor drawing excessive or abnormal current

26E

Ice maker positioning failure

Ambient temperature sensor failure

21E

Freezer fan motor failure or feedback signal issue

Freezer defrost sensor failure

Fridge defrost sensor failure

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