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
How to Fix
- 1
Inspect cable connections between Main PCB and R Compressor Inverter PCB
- 2
Oscilloscope verification of communication signals
- 3
Replace R Comp Inverter PCB; if error persists, replace Main PCB
This Error Applies To
Samsung RF34H9950S Series Refrigerators (2018) (2018–present)
Related Error Codes
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Cool Select Room fan stopped or not sending feedback
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Cool Select Room sensor failed or disconnected
Fridge defrost sensor disconnected or failed