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Samsung Dryer AC Error Code

Internal communication error. Here is what it means and how to clear it, easiest fix first.

AC
May need a pro

The dryer's internal boards, typically the main control and the display panel, are not communicating with each other. A brief glitch can cause it, but if it persists a loose connection or a failed board is likely.

Samsung groups AC, Et, AE, EEE, AE3, AE4, AE5, E3 and 1 AC as communication errors. Parts guides describe Et as a control board fault.

Safety first: unplug the dryer (or switch off its breaker) before touching filters, hoses or panels. If you smell burning or gas, or see water near the outlet, stop and call a professional.

How to fix Samsung AC

  1. Power cycle

    Turn the dryer off, or unplug it, for at least 60 seconds (some sources suggest up to 5 minutes), then restore power and try a cycle.

  2. Note when it happens

    If the code comes back, write down the exact code and when it appears, such as at power-on or mid-cycle. This helps the technician find the fault faster.

When to call a technician

If the code remains after a reset, book a repair. Do not open the control panel or board yourself.

Parts that commonly cause AC

Order parts by your exact model number so they fit.

Other Samsung dryer codes

Frequently asked questions

What does AC mean on a Samsung dryer?

The dryer's internal boards, typically the main control and the display panel, are not communicating with each other. A brief glitch can cause it, but if it persists a loose connection or a failed board is likely.

Can I fix Samsung AC myself?

Only the basic checks. You can safely try the steps above, but AC usually points to a part or fault that needs a technician.

What if AC keeps coming back?

A code that returns after a reset and the checks above usually means a part is wearing out. Note when AC appears (which cycle, how often) and have your model number ready; it helps a technician bring the right part on the first visit.

Last reviewed 2026-10-19. Codes and steps can vary by model; check your owner's manual.

References