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Samsung Ovens & Ranges2019–present

Error Code Communication

Communication between Display PCB and Inverter Module PCB is interrupted

Moderate

Address soon - your appliance may not work properly

What This Means

Defective PCB or wiring; Wiring mistake in communication lines; Disconnected wire harness

How to Fix

  1. 1

    Check terminal block voltage (240V, 60Hz)

  2. 2

    Check UART communication and wiring

  3. 3

    Check voltage of PCB SMPS (Input: 240V, Output: 12V and 5V)

  4. 4

    Check resistance of each IGBT

  5. 5

    Check circuit breaker

  6. 6

    Replace or Repair the wiring if needed

  7. 7

    Replace Assy inverter module PCB if defective

This Error Applies To

Samsung NE58H9970W Series Ovens & Ranges (2019) (2019–present)

Service manual exact match: NE58R9560WG/AAService manual exact match: NE58H9970WS

Related Error Codes

C-F0

Communication between Main and Sub PCB is interrupted

C-d0

Key short or keypad cable issue

C-F2

Communication between Main and Touch PCB is interrupted

C-31

PCB temperature sensor is short or PCB temperature rises abnormally high

C-d1

Door lock is mispositioned or door lock switch/motor issue

C-21

Oven sensor is short when operating or internal temperature rises abnormally high

C-30

PCB temperature sensor is open when oven is operating

C-20

Oven sensor is open or sensor has high resistance when oven is operating

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