An ordinary household bulb is not automatically suitable for the cavity's temperature or fitting. The correct type is specified by the appliance manufacturer.
What the observation means
Wattage, shape, base and heat suitability all matter; matching only the screw size is insufficient. Some lighting assemblies are not owner-serviceable. A damaged holder or cover is also different from a failed bulb.
A useful next step
Check the manual before obtaining a replacement and follow only its permitted owner procedure with safe isolation and cooling. If the assembly is damaged or inaccessible, arrange assistance. Do not substitute a general LED lamp merely because it fits the socket.
Manuals and supporting guidance
Model-specific instructions take priority. These references support the practical principles discussed here; they do not diagnose your appliance.