Error Code 45E

Main board lost communication with fridge compressor inverter

Moderate

Address soon - your appliance may not work properly

Also displayed as: 45E

What This Means

Communication cable loose or damaged; Failed R Comp Inverter PCB; Failed Main PCB

What actually causes this:

Wiring connector between Main PCB and R Comp Inverter PCB is loose or the R Comp Inverter has failed.

First Thing to Check

Reseat all connectors between the Main PCB and R Compressor Inverter PCB.

Parts Involved

Main PCBR Compressor Inverter PCBCommunication cable

How to Fix

  1. 1

    Inspect cable connections between Main PCB and R Compressor Inverter PCB

  2. 2

    Oscilloscope verification of communication signals

  3. 3

    Replace R Comp Inverter PCB; if error persists, replace Main PCB

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