Worcester Bosch Spark Electrode 87161051860

The Worcester Bosch spark electrode 87161051860 is an ignition component used in the manufacturer's CBI and SBI boiler families. It sits at the burner and produces the spark that lights the gas/air mixture when the appliance receives a demand for heat. As a wear item exposed to repeated ignition cycles and high temperatures, it is replaced as part of ignition fault diagnosis and routine servicing.

• The boiler reaches a demand for heat but the burner does not light, and the appliance locks out.
• Repeated ignition attempts with no flame established, often followed by a fault code on the display.
• Visible damage to the electrode tip, such as heavy erosion, carbon build-up or a distorted gap.
• Cracks or discolouration in the ceramic insulator body.
• Ignition becomes intermittent, with the boiler lighting on some attempts and failing on others.

• This part is fitted to a gas appliance; installation must be carried out by a Gas Safe registered engineer.
• Check the appliance GC number against the compatibility list to confirm the electrode matches your model.
• Quote the alternative number 1014467 if your records use that reference.
• Inspect the electrode lead and any seal or gasket at the mounting point, as these are often disturbed during replacement.