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Samsung Refrigerators2010–present

Error Code COMM-MAIN-PANEL

Control panel not communicating with main board

Critical

Stop using immediately - risk of damage or safety issue

Also displayed as: LED blinks

What This Means

Communication cable disconnected or damaged; Main PCB serial communication circuit failure; Panel PCB failure; Micom reset IC malfunction

What actually causes this:

Loose communication cable or PCB failure

First Thing to Check

Check cable connection between main board and control panel

Parts Involved

Main PCBPanel PCBSerial Communication Cable

How to Fix

  1. 1

    1. Verify cable connection between Main and Panel PCB

  2. 2

    2. Check CN40 pins 2-4 for proper seating

  3. 3

    3. With oscilloscope, verify serial signal transmission

  4. 4

    4. If signals present, replace main or panel PCB

This Error Applies To

Samsung RF24R7201 Series Refrigerators (2010) (2010–present)

Service manual exact match: RF24R7201AAService manual exact match: RF24R7201EGService manual exact match: RF24R7201SAService manual exact match: RF24R7201EOService manual exact match: RF24R7201APService manual exact match: RF24R7201EUService manual exact match: RF24R7201EFService manual exact match: RF24R7201FA

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R

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