The Rinnai Ignitor Assembly (805000172) is a genuine OEM replacement component for i-Series Plus combination boilers. The ignitor assembly converts control board signals into high-voltage pulses, producing the spark at the electrode that ignites the gas-air mixture at the burner on each startup. Ignitor failure causes ignition lockouts and prevents the boiler from firing. Replace with this OEM assembly to restore reliable burner ignition.
- Genuine OEM Rinnai replacement ignitor assembly
- Compatible with Rinnai i-Series Plus combination boilers
- Generates high-voltage spark pulses for reliable burner ignition
- Resolves ignition lockouts caused by ignitor failure or degradation
- Direct OEM replacement for correct output voltage and fitment