Dishwasher powers on but will not start a cycle; Start button beeps or flashes and cycle does not begin.

Safety first: Disconnect power before adjusting the latch mechanism.

• Check door closure: Ensure the door closes firmly and evenly. Look for interference from adjacent cabinets or countertop.
• Inspect latch and strike: Open the door and examine the door latch assembly and the metal door strike on the tub. Adjust the strike position slightly inward if the latch does not fully engage.
• Test latch switch: Access the latch from the top of the door and test the internal switch for continuity when the latch is closed. Replace the door latch assembly if the switch is intermittent or open.
• Control input: If the latch tests good, the main control board may not be reading the door-closed signal and may require replacement.