Dryer interior light does not work but dryer otherwise operates normally

Safety first: Unplug the dryer before replacing the bulb or working on the socket.

Step-by-step checks:

• Replace bulb: Install a new bulb of the correct type and wattage. If it works, no further action is needed.
• Inspect socket: If the new bulb does not light, inspect the socket for corrosion or heat damage. Replace if necessary.
• Door switch: Some models use separate contacts in the door switch for the light. Test these contacts for continuity when the door is open/closed.
• Wiring: Check wiring from the switch to the socket for breaks or loose connections.

When to call a technician: If the light circuit is controlled by the main board and all other parts test good, board-level diagnosis may be needed.