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Samsung Refrigerators2016–present

Error Code 44

Main board and inverter compressor board have lost communication

Moderate

Address soon - your appliance may not work properly

Also displayed as: 44Er

What This Means

Wiring cable problem between Main PCB and Inverter PCB; Inverter PCB failure; Main PCB failure

What actually causes this:

The inverter board that drives the compressor is not communicating with the main control board — the compressor will not run.

First Thing to Check

Inspect the wiring cable connecting the main PCB to the inverter PCB for any damage or loose connection.

Parts Involved

Main PCBInverter PCB

How to Fix

  1. 1

    Check cable connection between Main PCB and Inverter PCB

  2. 2

    Use oscilloscope to verify communication signals

  3. 3

    Replace Main PCB

  4. 4

    Replace Inverter PCB if issue persists after Main PCB replacement

This Error Applies To

Samsung RS27FDBTNS Series Refrigerators (2016) (2016–present)

Service manual exact match: RS27FDBTNSR/**Service manual exact match: DYF42SBIWSService manual exact match: RS27FDBTNSR/AAService manual exact match: RS757LHQESR/**

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