Every time a hot tap is opened on a Rinnai 26iV or HD50i continuous flow water heater, the electronic ignition system fires the burner automatically — and it's this spark kit that generates the high-voltage spark that actually gets the gas alight. It's a small component with a job the rest of the appliance's operation depends on entirely.
When the spark kit starts to wear or fail, the usual signs are the appliance struggling or refusing to light, or ignition-related fault codes appearing on the display. This genuine Rinnai replacement, made to the original specification, restores that ignition function and gets the appliance firing reliably again.
⚠ Important: This part should only be installed by a Gas Safe registered engineer or suitably qualified professional. Always isolate the gas supply and electrical power before starting work.
Key Features & Benefits
Genuine Rinnai Part: Made to OEM specification for a correct fit and reliable ignition.
Electronic Ignition Component: Generates the spark that fires the burner on demand.
Resolves Ignition Faults: Restores burner start-up where the original spark kit has failed.
Built to Last: Made for repeated ignition cycles over the appliance's working life.
Routine Service Item: Commonly replaced during servicing and ignition repairs.
Ideal For
Rinnai Infinity 26iV water heaters.
Rinnai HD50i continuous flow water heaters.
Gas engineers repairing Rinnai appliances.
Ignition system repairs.
Common Problems This Part Will Fix
Water Heater Won't Light: Replaces a worn spark kit that's no longer firing the burner reliably.
No Spark at Burner Start-Up: Restores spark generation when the tap is opened.
Intermittent Ignition Faults: Fixes inconsistent lighting caused by a degrading spark kit.
Recurring Fault Codes: Addresses error codes linked to failed ignition.
Heater Refuses to Fire on Hot Water Demand: Resolves the underlying ignition fault preventing start-up.
Why Buy This Product?
If your 26iV or HD50i won't light, or is throwing ignition fault codes, the spark kit is one of the first places worth checking — it's the component actually generating the spark that gets the burner going. Fitting the genuine Rinnai part restores that ignition to the original standard rather than working around a component that's already failing.
Order the Rinnai Ignition Spark Kit for 26iV / HD50i online today.
