Riello Ignition Electrode 3008932

The Riello 3008932 is an ignition electrode supplied for Riello burner assemblies. It sits at the burner head and carries the high-voltage spark across the gap that lights the fuel and air mixture during start-up. Electrodes are a wear item: heat, soot and repeated sparking gradually erode the tip and degrade the ceramic insulator, so the part is routinely replaced during burner servicing or when ignition faults appear.

• Burner reaches the end of the prepurge and then locks out without establishing a flame.
• Repeated ignition attempts with an audible spark but no light-up at the burner head.
• Visible erosion, pitting or a rounded tip on the electrode pin.
• Cracks, crazing or a blackened track on the ceramic insulator, allowing the spark to arc to earth instead of across the gap.
• Soot or carbon bridging the electrode gap, holding the spark away from the fuel and air mixture.

• Match the number on the burner data plate and on the existing electrode against 3008932 before ordering.
• This electrode carries the earlier Riello number 3008495, so an older burner may be marked with that reference.
• Check the electrode gap and the condition of the mounting insulation at the same time, as both affect spark quality.
• Ignition work on a burner should be carried out by a competent engineer, with the appliance isolated and the manufacturer's settings restored afterwards.
• This part is fitted to a gas appliance; installation must be carried out by a Gas Safe registered engineer.