Samsung Washers2024–present

Error Code AC6

The washer's control boards are not talking to each other

Moderate

Address soon - your appliance may not work properly

Also displayed as: AC6

What This Means

Signals between sub and main PBAs are not being sensed; Incorrect wire connections between the sub and main PBAs; Sub PBA is short-circuited due to moisture; Main PBA communication circuit is faulty; Disconnected wires between sub and main PBAs

What actually causes this:

A wire connection between the control boards came loose, or moisture got into the electronics

First Thing to Check

Unplug the washer for one minute and plug it back in — if the error returns, it needs service

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

  5. 5

    5. Turn off the washer, unplug it, wait one minute, and plug it back in

This Error Applies To

Samsung WA54CG7550 Series Washers (2024) (2024–present)

Service manual exact match: WA54CG7550AVService manual exact match: WA55CG7500AVService manual exact match: WA55CG7500AEService manual exact match: WA54CG7150ADService manual exact match: WA54CG7150AWService manual exact match: WA53CG7155ADService manual exact match: WA54CG7105ADService manual exact match: WA54CG7105AW+2 more

Need more help with your Samsung washers?