Samsung Washer Error Code AC2

The AC2 code indicates a communication failure between the DR Module and the main PBA on your Samsung washer. These two control boards must exchange signals to run wash cycles, and when that communication breaks down, the washer stops and displays AC2. The cause can be as simple as a loose connector or as involved as a failed control board.

No, you should not continue using the washer while the AC2 code is active. The error means the control boards cannot communicate properly, which prevents the washer from safely managing motor and cycle operations. Running the machine in this state risks mechanical damage or unpredictable behavior. Leave it unplugged until the fault is diagnosed and resolved.

If the fix is simply reseating a loose connector, there may be no parts cost involved, and a service call fee would be the primary expense, typically in the range of $75 to $150 depending on your area. If a DR Module or main PBA replacement is needed, parts alone can range from $100 to $350 or more, with total repair costs including labor often falling between $200 and $500. Getting a professional diagnosis first can help you decide whether repair or replacement makes more financial sense.

Start by unplugging the washer and inspecting the wiring harness connectors between the DR Module and the main PBA for loose, disconnected, or incorrectly seated connections. Press each connector firmly until it clicks into place. If connections appear secure, check for any visually damaged solder joints on both boards. If the error persists after addressing connection issues, one of the control boards likely needs to be replaced.

A reset by unplugging the washer for a few minutes may temporarily clear the code, but if the underlying connection or board issue remains, the AC2 error will return. A reset is useful for confirming whether the fault is intermittent, but it is not a fix on its own. The physical connections and board condition need to be inspected to resolve the error for good.