Ideal Ignition Electrode Kit Imax Xtra 174432

The Ideal Imax Xtra ignition electrode kit, part number 174432, is a replacement electrode assembly for Ideal Commercial Imax Xtra boilers. The ignition electrode produces the spark that starts combustion at the burner, while the flame-sensing electrode monitors whether a flame is actually present. If the control board does not detect a flame, the boiler knows to re-attempt ignition rather than continue to the next stage of the sequence.

Because both functions sit in the combustion path, the electrodes are exposed to heat, moisture and combustion deposits throughout their service life. A worn or contaminated electrode is a common cause of ignition faults and lockouts on this appliance family.

• The boiler fails to ignite, or ignition is intermittent and the appliance locks out.
• Repeated lockout shortly after the burner has fired, pointing to a weak or lost flame signal.
• Visible cracking, erosion or carbon build-up on the electrode tips or the ceramic insulator.
• The spark tracks to earth instead of jumping cleanly across the electrode gap.
• The boiler shuts down soon after lighting because the flame is not being confirmed.

• Confirm the boiler model and serial number against the compatibility list before ordering, as the same electrode pattern is not shared across every Ideal Commercial range.
• Note the alternative part number 1780366, which may appear on older documentation, labels or supplier listings for the same item.
• Electrode replacement is normally carried out with the burner or combustion cover open, so check whether a gasket or seal for that joint is also required for the job.
• This part is fitted to a gas appliance; installation must be carried out by a Gas Safe registered engineer.