Dishwasher displays F9; unit may overfill or leak from the door or base.

Safety first: Turn off power and water immediately if overfilling or leaking is observed.

• Stop water flow: Close the under-sink shutoff valve and turn off the breaker.
• Check water level: Open the door and verify that the water level is not above the bottom of the door opening. Bail out excess water if necessary.
• Inspect inlet valve: If water continues to enter with power off, the inlet valve is mechanically stuck open and must be replaced.
• Check level sensor and hose: Access the pressure sensor and hose. Clean any blockages and ensure the hose is not kinked.
• Test operation carefully: Restore power and water, run a short cycle while monitoring. If F9 returns, replace the faulty inlet valve or level sensor as indicated by testing.