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Samsung Refrigerators2022–present

Error Code 46Er

Internal I/O chip on the main board has stopped communicating

Critical

Stop using immediately - risk of damage or safety issue

Also displayed as: 46Er

What This Means

I/O Expander chip failure on Main PCB; Main PCB failure

What actually causes this:

A chip on the main control board has failed.

First Thing to Check

Power cycle the unit and see if the error clears.

Parts Involved

Main PCB

How to Fix

  1. 1

    Replace the Main PCB

This Error Applies To

Samsung RF59A7670 Series Refrigerators (2022) (2022–present)

Service manual exact match: RF59A7010**/**Service manual exact match: RF59A70T3**/**Service manual exact match: RF59A70T0**/**Service manual exact match: RF59A7F10**/**Service manual exact match: RF59A7670**/**Service manual exact match: RF59A70T1**/**Service manual exact match: RF23B7671**/**Service manual exact match: RF59A7011**/**+1 more

Related Error Codes

13C

Interior humidity sensor is faulty or not getting power

pc-Er

The main control board and display panel board have lost communication

2C

Fridge compartment temperature sensor is faulty or disconnected

23C

Machine compartment condenser fan has stopped working

6C

External ambient temperature sensor is faulty or disconnected

F-DEF

Freezer defrost heater or related safety component has failed

52Er

Main board has lost communication with the Wi-Fi module

21C

Freezer fan motor has stopped working or lost its feedback signal

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