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. First check the PCB and 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. Replace the PCB if the problem persists
- 4
4. If wiring is intact, replace SUB PBA first (more commonly at fault)
- 5
5. If error persists after SUB PBA replacement, replace Main PBA
This Error Applies To
Samsung DVE45T6020 Series Dryers (2020) (2020–present)
Related Error Codes
Your dryer is getting the wrong type of electrical power
Your dryer's temperature sensor isn't reading correctly
A secondary temperature sensor is giving bad readings
The dryer thinks the door is open while running
The door switch isn't working properly
A button on the control panel is stuck or shorted
Your dryer is getting the wrong voltage from the outlet
Your dryer isn't heating properly or is overheating