Gas burner clicks and sparks but flame does not appear or is very weak.

Safety first: Turn off the burner and wait for any accumulated gas to disperse before reattempting ignition.

• Check gas valve: Ensure the main gas shutoff and any intermediate valves are fully open.
• Clean burner: Remove burner cap and head. Clean all ports with a brush and ensure the gas flows freely.
• Inspect hose: For LPG installations, check that the flexible hose is not kinked or crushed.
• Verify gas type: Confirm the cooktop is configured for your gas type (natural gas vs LPG) and that the correct injectors are installed.

When to call a technician: If gas flow remains weak, the gas pressure regulator or internal valve may need adjustment or replacement.