Error code

AC4

Q: What does error code AC4 mean on a Samsung DV22N6850HX?

Your dryer's WiFi connection isn't working Possible causes include faulty soldering on the WiFi module, communication failure between the WiFi PBA and main PBA, or a failure in the main PBA's WiFi circuit. Additionally, entering line test mode after completing the dry procedure could be responsible.

Meaning

Your dryer's WiFi connection isn't working

Moderate

What to do

Why this happens

Possible causes include faulty soldering on the WiFi module, communication failure between the WiFi PBA and main PBA, or a failure in the main PBA's WiFi circuit. Additionally, entering line test mode after completing the dry procedure could be responsible.

How to fix it

Try reconnecting the dryer to WiFi through the SmartThings app. If it won't connect, restart your router and try again.

SourceSamsung service manual