How do I fix error code AC2 on a Samsung washers?

1. undefined: 1. Check the wire connections and terminal contacts between the sub and main PBAs 2. undefined: 2. Check for disconnected wires 3. undefined: 3. Check whether the sub PBA is short-circuited because of moisture 4. undefined: 4. If the main PBA communication circuit is faulty, replace it

Samsung Washers

Error Code AC2

Q: What does error code AC2 mean on a Samsung washers?

An internal data communication link has failed I/O board communication error; Sub PBA short-circuited due to moisture; Main PBA communication circuit fault

An internal data communication link has failed

Critical

Stop using immediately - risk of damage or safety issue

Also displayed as: AC2

What This Means

I/O board communication error; Sub PBA short-circuited due to moisture; Main PBA communication circuit fault

What actually causes this:

A wiring connector inside the washer has come loose or corroded

First Thing to Check

Unplug the washer for 60 seconds, then restart

Parts Involved

Sub PBAMain PBA

How to Fix

1
1. Check the wire connections and terminal contacts between the sub and main PBAs
2
2. Check for disconnected wires
3
3. Check whether the sub PBA is short-circuited because of moisture
4
4. If the main PBA communication circuit is faulty, replace it