Aeg cib6679apw oven light turns off automatically — homemade yogurt

Use only checks that match the exact appliance or system and its official guide.

1. Check 1

   Read the complete rating-plate model code and nine-digit PNC, record the region and confirm that the appliance is CIB6679APW before selecting an AEG manual or lamp instruction.

   Expected result: The label matches CIB6679APW, shows a different suffix/PNC, or cannot be read.

   Next step: Use AEG's manual finder with the actual code and PNC. If the label cannot be matched, stop model-specific lamp troubleshooting and contact AEG support.

   Why this matters

   Why: AEG routes manuals by model code/PNC, and its support guidance says exact lamp instructions and programme behavior are model-specific. A family resemblance is not enough to select a bulb or setting.

2. Check 2

   Write down the exact function, temperature and timer settings used when the lamp went dark, and whether the oven was in a low-temperature, humid/eco or other special programme. Do not change settings just to force a light while food is being prepared.

   Expected result: The lamp turns off only in a named special programme, or it also turns off in ordinary Conventional Cooking and the standalone Light function.

   Next step: If the behavior is limited to a special programme, follow the exact CIB6679APW manual for that programme. If it also occurs in the Light/Conventional function, stop treating it as a normal programme feature and continue to the service branch.

   Why this matters

   Why: AEG documents that some modes intentionally keep the lamp off or deactivate it to save energy, while a lamp that fails in the documented Light or Conventional Cooking function may indicate a lamp or other technical problem. The opened sources do not prove that 20 minutes is a CIB6679APW timer.

3. Check 3

   When the oven is cool and no food is at risk, use only the exact manual's documented Light or Conventional Cooking function to compare lamp behavior; do not remove a cover or bulb merely as a test.

   Expected result: The lamp illuminates in the documented test function, remains dark in every applicable function, or the lamp glass is dark/black.

   Next step: Use the CIB6679APW manual for any cold, disconnected user-replaceable lamp procedure. If no exact procedure is available, the lamp is LED, or the fault persists, book authorised AEG service.

   Why this matters

   Why: A lamp that works in the test function makes a mode-specific behavior more likely. A lamp that remains dark in all applicable functions or has a blackened bulb may need replacement or technical diagnosis, but AEG says the lamp type and access vary by model and LED lamps may require a technician.

4. Check 4

   Observe the oven only from outside for separate warnings: display fault, loss of heat, overheating, burning smell, smoke, damaged door/gasket or an electrical problem. Do not open the control area, bypass a thermal or door switch, or run unattended to keep the lamp on.

   Expected result: The oven heats abnormally, shows a fault, smells burnt, smokes, has visible damage, or the only symptom is the lamp state.

   Next step: Stop use and isolate power only if safe to do so, then arrange authorised AEG service for any safety warning. If only the lamp behavior remains, provide the exact model/PNC, function and timing to AEG support without guessing a component.

   Why this matters

   Why: A lamp symptom alone does not identify a thermostat, control or safety-device failure. Heat, smoke, burning odor, damaged seals or a displayed fault move the issue beyond a lamp/programme check.

5. Check 5

   Keep the cavity, bulb cover and controls closed unless the exact manual explicitly gives a cold, disconnected user procedure. Do not use an unlisted bulb, force a cover, or work on wiring.

   Expected result: The manual gives no exact CIB6679APW lamp procedure, the lamp is LED, or access requires removing a panel.

   Next step: Arrange an authorised AEG technician and provide the model code, PNC, programme, temperature and time-to-dark observation.

   Why this matters

   Why: AEG says lamp location and replacement vary by model and that some LED lamps require a technician. Panel or wiring work is outside ordinary user checks.