The dishwasher displays E9 and may not start or may stop unexpectedly; this is often associated with the door status.

Safety first: Disconnect power before working on the door assembly.

• Check door closure: Ensure the door closes firmly and evenly. Look for bent hinges or obstructions preventing full closure.
• Inspect latch and strike: Examine the Maidaid door catch and cabinet strike plate for wear or damage. Adjust or replace if the latch does not engage securely.
• Test door switch: Access the control panel area to reach the door switch or interlock. Use a multimeter to check continuity when the door is closed. Replace the Maidaid door interlock if it does not switch correctly.
• Check wiring: Inspect the harness between the door switch and control board for broken conductors, especially where it flexes. Repair or replace as needed.
• Reassemble and test: After replacing or adjusting components, restore power and start a cycle. Confirm that E9 does not reappear and that the machine runs only when the door is closed.