Gas cooktop burner goes out on low setting or cannot be adjusted to a stable simmer.

Safety first: Only perform flame adjustments if you are comfortable working around gas and have a stable flame. Do not disassemble gas valves.

• Clean burner: Thoroughly clean burner head and ports to ensure even gas flow.
• Access adjustment screw: Remove the control knob for the affected burner. Behind it, on the valve stem, there is usually a small brass adjustment screw for the minimum flame.
• Adjust flame: Light the burner and set it to the lowest setting. Using a small screwdriver, turn the screw slightly (clockwise to reduce, counterclockwise to increase) until a stable, small blue flame is achieved that does not go out.
• Check all settings: Test the burner at high and low settings to ensure smooth transition.
• Professional help: If adjustment does not stabilize the flame, have a gas technician verify gas pressure and injector sizing.