When the overhead lights on a kitchen cooker hood fail to turn on while the ventilation fan operates normally, the issue is typically isolated to the lighting circuit. Common culprits include a burned-out light bulb, a loose bulb screwed crookedly into its socket, a faulty light switch on the control panel, a loose wiring harness spade connection, or a blown internal thermal fuse. You can troubleshoot lighting failures safely after disconnecting power. You can verify that your corrective action is successful when replacing a burned-out bulb, securing loose terminal wires, or swapping a faulty light switch restores bright illumination to your cooktop area.
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