Grundig oven interior light does not work, but oven heats normally.

Safety first: Switch off the oven and allow it to cool. Disconnect from mains before changing the bulb.

• Replace bulb: Remove the glass cover (usually by unscrewing) and replace the bulb with a high‑temperature oven lamp of the correct wattage and fitting as specified by Grundig.
• Check contacts: Ensure the new bulb is firmly seated and the lamp holder contacts are not corroded.

If a new bulb does not light, the lamp holder or control circuit may need professional diagnosis.