• Burners are dirty. >>> Clean burner components.
• Burners are wet. >>> Dry the burner components.
• Burner cap is not mounted safely. >>> Mount the burner cap properly.
• Gas valve is closed. >>> Open gas valve.
• Gas cylinder is empty (when using LPG). >>> Replace gas cylinder.

If the burner clicks but will not light, remove the burner cap. Push the knob (do not turn). When you hear the clicking of the ignition, you should be able to see a spark from the ignition candle to the burner head. If you cannot see a spark, call for a service.

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• When the metal parts are heated, they may expand and cause noise. >>> This is not a fault.

• No current. >>> Check fuses in the fuse box.

• Main gas valve is closed. >>> Open gas valve.
• Gas pipe is bent. >>> Install gas pipe properly.

It is most likely some moisture has entered the ignition switches under the knobs. This may be from spillage or when cleaning with liquids. Turn off the cooktop at the power point and allow 24-48 hours for it to dry out before switching it back on.
Note: Water will dry out. Oil will take much longer or may not dry out at all.

Depress the control knob for a longer period. Up to 15 seconds is considered normal operation. 

This is indicative of the minimum rate not being set correctly on install.

On some models, we use a single output generator. This is normal.