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Samsung Dishwasher CE / AC Error Code

Communication error between boards. What it means, which models show it, and how to clear it, easiest fix first.

SamsungAll Samsung dishwasher codes

CE / AC
May need a pro

The control panel and the main control board aren't communicating properly. A loose or damaged connection between them, or a board fault, is usually behind it.

Compatible models

Samsung doesn't publish a model list for this code; it appears on Samsung dishwashers with a digital display. Check your owner's manual.

Also shown as

US and Canada: CE. Australia: AC and CA, both for a communication fault between the main and sub control boards. On UK models, AC is described as the dishwasher powering on but not starting a cycle (often after the door was opened mid-cycle or the unit was moved), and AC6 as an electronic lockout where Start does nothing.

Difficulty

Try the basic checks, but the usual fix is a technician's job.

Safety first: unplug the dishwasher (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 CE / AC

  1. Power cycle the dishwasher

    Switch the dishwasher off at its circuit breaker (or unplug it) and wait about 1 minute. Restore power and start a fresh cycle. If the code clears and stays away, it was likely a one-time glitch.

  2. Try a longer power-off

    If the code comes straight back, switch off the breaker or unplug the dishwasher for about 10 minutes before trying again.

When to call a technician

If the code persists, request service. Do not open the control panel or check wiring yourself.

Parts linked to CE / AC

These are the parts most often behind this code. Tap one to see what it does and the signs it is failing.

Order parts by your full model number so they fit.

Frequently asked questions

What does CE / AC mean on a Samsung dishwasher?

The control panel and the main control board aren't communicating properly. A loose or damaged connection between them, or a board fault, is usually behind it.

Which Samsung models show the CE / AC code?

Samsung doesn't publish a model list for this code; it appears on Samsung dishwashers with a digital display. Check your owner's manual.

Can I fix Samsung CE / AC myself?

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

What if CE / AC keeps coming back?

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

Other Samsung dishwasher codes

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

Sources we checked