Error Code AC

The control panel and main computer board cannot talk to each other.

Moderate

Address soon - your appliance may not work properly

Also displayed as: AC

What This Means

Signals between sub and main PBAs not sensed; Incorrect or loose connector connections between sub and main PBAs; Disconnected wires; Faulty soldering on sub PBA

What actually causes this:

A loose wire connection between the control panel board and the main circuit board, often from vibration.

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. Remove the sub PBA control panel and check for any faulty soldering

  5. 5

    5. If the main PBA's communication circuit is faulty, replace it

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