Samsung Washer Error Code AC: How to Fix It

Medium 30-60 minutes Medium Severity Verified June 2026
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Error Code
AC
Brand
Samsung
Product Type
washer
Severity
Medium
DIY Difficulty
Medium
Estimated Fix Time
30-60 minutes
Error code AC on a Samsung washer indicates a communication error between the main control board (PCB) and the display board. This typically means the boards are not talking to each other properly, often due to loose wiring, a faulty connection, or a failed component.
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Tools You'll Need

How to Fix Error Code AC

  1. Unplug the Washer

    Always unplug the appliance before working on it.

  2. Inspect and Reseat Connectors

  3. Check for Damaged Wires

  4. Test the Display Board

    Use caution when testing live circuits. If unsure, call a professional.

  5. Test the Main Control Board

    Electrostatic discharge can damage boards. Use proper grounding.

  6. Reset the Washer

Parts You May Need

Display board
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Main control board (PCB)
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Display board
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Main control board (PCB)
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Display board
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Main control board (PCB)
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Display board
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Main control board (PCB)
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When to Call a Professional

If you've checked connections and boards but the error persists, the control boards may need reprogramming or the wiring harness may have internal breaks. A qualified technician can test with specialized equipment.

Frequently Asked Questions

Can I reset Samsung error code AC?
Yes, unplug the washer for 5 minutes, then plug it back in. If the error reappears, the issue is hardware-related.
How much does it cost to fix a Samsung washer display board?
A replacement display board typically costs $50-$150. Professional installation can add $100-$200.
Is error code AC serious?
It's a medium severity error. The washer may stop mid-cycle. If ignored, it can prevent the washer from operating.

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