Samsung · Washing Machine · Control Board Error

Samsung Washing Machine Error AC

Samsung washing machine error AC usually indicates a control-board or communication fault. ECL records this code as “Communication Error”. Common causes on this page include Loose wiring harness and Display PCB fault, but the exact cause can vary by model and appliance generation. Keep to the external checks and safety guidance below; do not remove covers or test internal or live components, and arrange professional diagnosis if the code persists.

Quick answer: Communication Error

In simple terms

Samsung washing machine code AC usually means Communication Error. Follow these four steps.

1Understand the code

See what the code usually means and why it may have appeared.

2Try safe checks

Try only the simple checks listed on this page. Do not take the appliance apart.

3Check if it is safe to use

Check the safety section before you keep using the appliance.

4Choose the next step

Use the next-step box to see whether to keep checking, find a part by model or get repair help.

What Samsung AC means

The display board and main control board are not communicating correctly.

Repair help

Repair or replace?

Start with a repair option. If the appliance is older or the repair is expensive, you can then compare the cost of replacing it.

Get a repair option Compare replacement options

No obligation. Your contact details are only shared after you submit the repair request, and only with a suitable ECL Verified repairer where coverage is available.

Common causes

  • Loose wiring harness
  • Display PCB fault
  • Main PCB fault

Safe checks you can make

  1. Power-cycle the appliance for 10 minutes

When to stop and call an engineer

If standard user maintenance does not clear the error, or if you suspect an electrical component failure.

Your model may be different

Error-code meanings can vary by model, market and appliance generation. Confirm Samsung AC against the instruction manual or support information for the exact model number before replacing parts or treating this page as a model-specific diagnosis.

Where this information comes from

Publisher: Error Code Lookup Editorial Team. This page is independent information written in our own words and reviewed with safety boundaries in mind.

Manufacturer information: Samsung UK Home Appliance Support. Use the exact model number to verify model-specific wording and instructions.

Last reviewed: 2026-05-18

How Error Code Lookup researches and verifies pages · Report a correction or provide model-specific evidence

Frequently asked questions

What does AC mean on a Samsung washing machine?

The display board and main control board are not communicating correctly.

What usually causes Samsung error AC?

Common causes include Loose wiring harness; Display PCB fault; Main PCB fault.

Can I safely fix AC myself?

This fault may require professional diagnosis or repair. Only basic external safety checks should be attempted.

When should I call a professional for AC?

If standard user maintenance does not clear the error, or if you suspect an electrical component failure.

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