Oven will not start; display shows a door-related error or beeps when trying to start (on models with door switch monitoring).

Safety: Isolate the oven from the mains before working on the door or switch.

• Check door closure: Ensure the door closes fully and latches firmly. Look for bent hinges or a worn door seal preventing full closure.
• Inspect door catch and striker: Examine the metal or plastic catch on the door and the striker on the cabinet. Replace if broken or excessively worn.
• Test door switch: Locate the door switch (often behind the front panel or near the latch). With power off, remove the switch and test continuity with a multimeter while pressing and releasing the actuator. Replace if readings are inconsistent.
• Check wiring: Inspect the harness from the switch to the control PCB for damage or loose connectors.
• Reassemble and test: After replacing faulty parts, restore power and confirm that the error clears and the oven starts normally.