Hamworthy Gas Burner Assembly Mk3 363309538

The Hamworthy 363309538 is a gas burner assembly, Mk3 variant, used in Hamworthy gas boilers. It carries and delivers the gas/air mixture to the combustion chamber, where ignition and flame establishment take place. It is supplied as a complete burner assembly rather than as individual burner components.

• The boiler repeatedly locks out or fails to establish a flame.
• Ignition is erratic, delayed or accompanied by a noticeable bang on light-up.
• The flame is unstable, lifting off the burner or burning unevenly across the surface.
• Soot deposits, discolouration or heat damage are visible on the burner head or its surrounding components.
• Combustion readings cannot be brought within the required range by normal servicing and adjustment.

• Confirm the boiler model and serial number against the manufacturer's parts list to verify that this Mk3 burner assembly is the correct item.
• Check the existing burner's markings and variant to ensure the Mk3 assembly matches what is currently fitted.
• Verify that the fault lies with the burner assembly itself and not with the gas valve, ignition electrode, fan or associated controls.
• Burner replacement and subsequent combustion testing must be carried out by a competent gas engineer.