Logik oven shows E04 and will not start any heating function.

Safety first: Disconnect the oven from mains power. Do not force the door; you may bend the hinges or damage the glass.

• Check door closure: Ensure the door closes fully and evenly. Look for bent hinges or a warped door seal preventing full closure.
• Inspect latch and strike: Examine the metal latch on the door and the strike on the cabinet. Tighten any loose screws and realign if necessary so the latch engages smoothly.
• Access door lock assembly: Remove the top or front trim (depending on model) to reach the door lock mechanism. Take note of screw positions and wiring before removal.
• Test door switch: With a multimeter, check continuity of the door switch when the latch is engaged and disengaged. Replace the switch if it does not change state reliably.
• Check lock motor/solenoid: Inspect for signs of overheating or mechanical jamming. If the lock does not move when the oven attempts to start a locked function (e.g., pyrolytic clean on some models), the lock motor may be faulty and should be replaced.
• Wiring inspection: Verify that all connectors between the lock assembly and main control PCB are secure and free of corrosion or burning.