Error Code AC
The dryer's internal parts aren't communicating properly
Critical
Stop using immediately - risk of damage or safety issue
Also displayed as: AC
What This Means
Faulty Main PBA (main control board); Faulty SUB PBA (display board); Damaged or loose wire harness between Main PBA and SUB PBA
What actually causes this:
A loose wire connection between the control board and display, or a power surge scrambled the electronics.
First Thing to Check
Unplug the dryer for 2 minutes, then plug it back in — this resets the electronics.
Parts Involved
How to Fix
- 1
1. Check wire harness connection between Main PBA and SUB PBA for loose or damaged connectors
- 2
2. Inspect wire harness for pinched, cut, or corroded wires
- 3
3. If wiring is intact, replace SUB PBA first (more commonly at fault)
- 4
4. If error persists after SUB PBA replacement, replace Main PBA
Parts Commonly Needed for This Error
OEM part numbers confirmed by retailers
This Error Applies To
Samsung DVE45R6300 Series Dryers (2024) (2024–present)
Related Error Codes
The dryer thinks the door is open while running
Your dryer detected restricted airflow during a vent test
Your dryer is getting the wrong voltage from the outlet
Your dryer vent is over 90% blocked — needs immediate cleaning
Your dryer vent is about 80% blocked
Your dryer vent test passed — airflow is good
The vent blockage test found a problem with your exhaust
A button on the control panel is stuck or shorted