• Check that your home's circuit breaker for the dishwasher is in the ON position; if tripped, switch it OFF then back ON
• Locate the water supply shutoff valve behind or under your dishwasher and ensure it is fully open by turning the handle counterclockwise
• Inspect the inlet water supply hose for kinks, twists, or pinching and straighten if necessary
• Remove and rinse the water inlet filter screen located at the water inlet valve connection point
• Verify that your home's main water supply valve is open and water pressure is adequate
• Ensure the dishwasher door is fully closed and the latch is fully engaged with an audible click
• Check spray arms for food debris or mineral buildup blocking water holes and rinse if needed
• Clean the dishwasher filter basket at the bottom and ensure it is properly seated
• Perform a hard reset by switching off the circuit breaker for 60 seconds, then switch it back ON to clear the error
• If error persists after these checks, contact a qualified Miele service technician for further diagnosis