Furnace Ignitors
Furnace ignitors, also known as hot surface ignitors, are essential components that ignite the fuel in your furnace or boiler, transforming it into heat. These ignitors light the burner, producing warmth through the heat exchanger. If your furnace is cycling on and off frequently, a faulty ignitor could be the reason behind this short cycling. Save money and reduce technician visits by choosing easy-to-install hot surface and furnace ignitor products designed to extend ignitor life.
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Discover high-quality furnace ignitors from trusted brands like Robertshaw, Honeywell, ICM Controls, and White-Rodgers. Designed for top performance and reliability, these furnace ignitors help keep your heating system running smoothly. Shop our collection at Jackson Systems & Supply now to find the perfect fit for your furnace needs!
Which Furnace Ignitor Do You Need?
When a furnace won’t light—or short cycles—the hot-surface ignitor is a prime suspect. You’ll typically choose between universal silicon-nitride upgrades (longer life, tougher against handling) and OEM-shape silicon-carbide replacements that match the original bracket and connector. If the ignitor looks good but never glows, the culprit may be the non-integrated HSI control module. A universal replacement can drop in and restore the heat cycle. Match material, form factor (flat/round/mini-flat), connector (2-pin vs. bare leads), and 120-V rating for a clean, first-trip fix.
Universal Silicon Nitride (Durable Upgrades)
- Honeywell Glowfly Q3200U1004 (universal kit) — multiple brackets/adapters for broad cross-refs.
- White-Rodgers HotRod 21D64-5PK (universal nitride, 5-pack) — same universal fit/function as the single-pack HotRod, but in a contractor value pack.
OEM-Shape & Silicon Carbide Replacements
- Robertshaw / Norton 41-410 — 5-1/4″ ignitor, B-type connector (Norton 271N family).
- White-Rodgers 767A-378 (Amana OEM) — carbide ignitor shaped for Amana applications.
- White-Rodgers 767A-380 (Armstrong OEM) — carbide ignitor shaped for Armstrong applications.
Ignition Modules if the Ignitor Is Good
- Honeywell S8910U3000 (universal HSI module) — replaces many non-integrated HSI controls.
- White-Rodgers 50E47-843 (universal HSI module) — broad cross-references across brands.
How to Find Your Match
- Material/Upgrade: Prefer silicon nitride for durability unless OEM requires carbide.
- Form Factor: Flat / round / mini-flat + included brackets/adapters.
- Connector: 2-pin plug vs. bare leads; choose the kit with the right adapter.
- Voltage/Clearance: Most are 120 V; verify mounting depth and flame-front clearance.
- No Glow After Swap? Test/replace the HSI module.
















