Samsung dryer error code

AC

Internal communication error

Parts inside the dryer cannot talk to each other.

Also shown on some Samsung models as: AE Et EEE AE3 AE4 AE5 E3 1 AC

Try these free fixes first

Unplug the dryer before opening any panel.

  1. Turn the dryer off or unplug it for 60 seconds.
  2. Plug it back in and turn it on.
  3. Start a new cycle.

Still showing AC?

If the code persists, a technician should check the wiring between the control boards.

Main control boardCheck that the part matches your exact model number (usually on a sticker inside the door or on the back).Find the part
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Questions people ask

What does AC mean on a Samsung dryer?

AC on a Samsung dryer means: internal communication error. Parts inside the dryer cannot talk to each other.

How do I fix Samsung dryer error AC?

Turn the dryer off or unplug it for 60 seconds. Plug it back in and turn it on. Start a new cycle.

When should I call a repair technician?

If the code persists, a technician should check the wiring between the control boards.

Related dryer codes

Source: Samsung official support · Reviewed 2026-10-01