Dishwasher stops mid-cycle without any error code; lights may remain on but cycle does not progress.

Safety first: Disconnect power before inspecting internal wiring or boards.

• Note when it stops: Observe whether it stops during wash, heat, or drain to narrow down the suspect system.
• Check door latch: Wiggle the door gently; if the machine restarts or stops, the door switch may be intermittent. Replace the latch assembly.
• Inspect wiring harness: Look for loose or burnt connectors at the control board, pumps, and sensors. Reseat all plugs.
• Check for overheating: If the base feels very hot and the unit stops during heating, the heater or pump may be overheating and tripping a safety device. Inspect and test these components.
• Control board replacement: If all components test good and wiring is secure, the main control board may be failing and require replacement.