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AC6

Inverter communication fault

Communication between the main control board and inverter board is abnormal.

What this code means

Communication between the main control board and inverter board is abnormal.

Possible causes

  • Inverter PCB fault
  • Wire-harness or connector issue
  • Main control communication fault

Common symptoms

  • AC6 or AE6 displayed
  • Motor operation may stop
  • Programme may not continue

Checks to make

  1. Turn the machine off and restart
  2. If competent, visually check only accessible external connections
  3. Arrange service for inverter and harness diagnosis

Safety

  • Switch off and unplug the appliance before accessing hoses, filters or internal components. Do not bypass door locks or safety devices.

Model notes

Samsung notes that code format and availability can vary by model.