Error code

Samsung / Washing machine

AC

Main-to-sub control communication needs checking.

What it means

Main-to-sub control communication needs checking.

This explanation is shared only by models whose manufacturer documents the same code, meaning, and guidance.

Manufacturer guidance

Switch off and retry cycle.

Manufacturer source

Models documented with this signal

Select your exact model below to open its manufacturer source. Manual editions and model revisions can differ.

If there is a safety risk, stop using the appliance and follow the manufacturer’s instructions.