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
- 2
2. Inspect wire harness for pinched, cut, or corroded wires
- 3
3. Replace the PCB if the problem persists
- 4
4. Replace SUB PBA first (more commonly at fault), then Main PBA if error persists
Parts Commonly Needed for This Error
OEM part numbers confirmed by retailers
This Error Applies To
Samsung DVE50T5300 Series Dryers (2019) (2019–present)
Related Error Codes
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 isn't heating properly or is overheating
Your dryer is getting the wrong voltage from the outlet
Your dryer's temperature sensor isn't reading correctly
Your dryer is getting the wrong type of electrical power