Oven interior light does not turn on when door is opened, but works when manually switched on (if that function exists).

Safety first: Turn off power before working around the door frame.

• Inspect door alignment: Ensure the door closes squarely and contacts the switch plunger.
• Test door switch: Remove the switch from the frame and test continuity while pressing the actuator. Replace if defective.
• Check wiring: Verify that the switch wires are intact and firmly connected to the control board.