Medium - Inspection Needed

Miele Dishwasher F63 Error Code (Door Lock Not Confirmed)

F63 means the control board can't confirm the door is securely locked, so the cycle won't start — a safety interlock, not a performance fault.

What F63 Means

F63 means the control board can't confirm the door is securely locked, so the cycle won't start — a safety interlock, not a performance fault.

Common Causes of F63

  • Worn or misaligned door latch mechanism
  • Failed door lock switch/sensor
  • Door strike plate loose or out of alignment

🔧 One Safe Check You Can Try

Check that the door latches firmly and that nothing (a warped door gasket, a loose strike plate) is preventing a full, confirmed close.

⚠ Why You Shouldn't Go Further Than That

  • The door lock is a genuine safety interlock preventing the unit from running with a door that isn't truly secured, and bypassing or forcing it defeats that protection.

Opening a panel to inspect or repair something yourself doesn't automatically cancel your manufacturer's warranty — but it can risk accidental damage, and some manufacturers do have specific service conditions. Check your product's warranty terms, or ask us, before deciding.

Other Dishwasher Error Codes

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