Smeg oven steam-clean or vapor-clean function is ineffective; residue remains after cycle.

Safety first: Allow the oven to cool before adding water or cleaning.

• Follow instructions: Ensure you are using the correct amount of water in the base of the oven or water tank as specified by Smeg.
• Pre-clean: Remove loose debris and heavy grease manually before running the steam-clean cycle.
• Repeat cycle: For stubborn deposits, run the steam-clean program twice, wiping the cavity with a soft cloth between cycles.
• Check steam outlets: On steam-assisted models, ensure steam outlets are not blocked by residue; clean gently.