Samsung Washers2015–present

Error Code AC

Your washer's control boards cannot talk to each other.

Moderate

Address soon - your appliance may not work properly

Also displayed as: AC

What This Means

Signals between the sub and main PBAs are not sensed because of communication check; Incorrect or loose connector connections between the sub and main PBAs; Faulty soldering on the sub PBA C/Panel; Main PBA fault

What actually causes this:

A loose wire connection between the display panel and the main circuit board, sometimes caused by vibration over time.

First Thing to Check

Unplug the washer for 60 seconds, then plug it back in and try again.

Parts Involved

Sub PBAMain PBAWire Harness

How to Fix

  1. 1

    1. Check the wire connections and terminal contacts between the sub and main PBAs

  2. 2

    2. Check for disconnected wires

  3. 3

    3. Check whether the sub PBA is short-circuited because of moisture

  4. 4

    4. Check if the main PBA's communication circuit is incorrect or defective

  5. 5

    5. If faulty, replace the main PBA

This Error Applies To

Samsung WA52J8 Series Washers (2015) (2015–present)

Service manual exact match: WA52J8700AP/A2Service manual exact match: WA52J8700AW/A2Service manual exact match: WA52J8060AW/A2

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