Samsung Washer Error Code 1AC4

The 1AC4 code signals a communication error between the WiFi module and the main PBA on the upper washer. This means the two components are not successfully exchanging data, which can disrupt smart features and remote connectivity. The issue is most commonly caused by a loose connector between the two components.

A reset may temporarily clear the error code, but if the underlying connection or component issue is not resolved, the code will return. Resetting is worth trying after reseating the connector, but it is not a permanent fix on its own. Address the root cause before relying on a reset.

If only a connector reseating is needed, there may be no parts cost, though a service call fee typically runs in the range of $75 to $150. If the WiFi module requires replacement, parts and labor combined can range from $150 to $350 depending on location and part availability. Main PBA replacement is the most expensive scenario, often ranging from $250 to $500 or more.

In many cases, yes. The first step is to check and reseat the connector between the WiFi module and the main PBA, which requires accessing the washer's control area. If the connector is secure and undamaged but the error persists, component replacement becomes necessary and may be better handled by a qualified technician.

The 1AC4 error relates specifically to the WiFi communication system and is not typically a safety hazard. Basic wash cycles may continue to function normally even while this code is active. However, operating the machine with a confirmed electrical or board-level fault for an extended period is not recommended without diagnosis.