M18 piezoelectric ignition for professional gas cookers and ranges. It converts the mechanical push on the button into an electrical discharge that reaches the burner electrode, producing the spark that lights the flame without needing an external power supply.

• Type: push-button piezoelectric igniter
• Mounting hole: M18 (18 mm)
• Use: lighting gas burners on professional cookers
• Category: switches/commutators

It should be replaced when pressing the button no longer produces a spark, when the spark is weak or intermittent, or when the button is broken or stuck: in these cases the burner can no longer be lit with the piezo igniter and manual lighting with a match or lighter becomes necessary, which is inconvenient for everyday use.