Samsung · Dishwasher Moderate
AC — Powers on but cycles won't start
The dishwasher powers up and accepts a cycle selection but the start command isn't responding — typically a control panel or door-latch issue.
- Keep using it?
- Yes, with caution
- DIY difficulty
- Easy
- Verified against
- samsung.com ↗
How to fix it
- Confirm the door is closed firmly and the latch clicks.
- Hold the Smart Auto or Delay Start button per your model to disable Child Lock.
- Power off at the breaker for 1 minute and restore — many AC codes clear with a hard reset.
- Inspect the door switch with a multimeter for continuity when latched.
- If still stuck, suspect the touch control board.
Why it happens
Typical signs: AC on display or controls unresponsive · Lights on but no start · Buttons feel mushy or unresponsive · Cycle abort on Start press
- Door not fully latched Door switch not closing the start circuit.
- Child Lock / Control Lock enabled Lock icon blocking cycle start.
- Stuck/failed touch panel Button membrane shorted or aged.
- Main board / panel communication fault Often clears on power cycle.
Parts you may need
If diagnosis points to a failed part, these are the common replacements. As an Amazon Associate we earn from qualifying purchases.
More Samsung dishwasher codes
Always unplug an appliance before servicing it. This guide is for informational purposes and is not a substitute for a qualified technician. Verified against manufacturer documentation: samsung.com.