The Surface Igniter DS409KX is a 120 VAC silicon carbide (SiC) flat hot surface igniter made by Surface Igniter LLC, a direct replacement for the Robertshaw 41-409 / Norton 271 / White-Rodgers 767A-370 igniter used on Carrier, Bryant, Payne, Ducane and Arco Aire gas furnaces.
Replaces part numbers: 41-409, 271, 767A-370, IG409, IG409K, SIG-409, IGN-409, 780-409, 67920, L37-816, LH33ZS001A, LH33ZS002, LH33ZS004, 20015201, 1380680, 1380672, AF1409, L45-546
Specifications
- Voltage: 120 VAC (115 VAC nominal) – not for 80 V or 95 V systems
- Material: recrystallized silicon carbide (SiC)
- Style: flat element on rectangular ceramic block (Norton 271 / 41-409 style)
- Connector: 2-pin plug
- Includes: igniter and 2 ceramic wire nuts
Carrier LH33ZS owners: DS409KX is the silicon carbide replacement. For the silicon nitride upgrade kit, see SN085KX.
Cross reference
| Brand | Part numbers | Fit |
|---|---|---|
| Robertshaw | 41-409 | Direct |
| Norton / Saint-Gobain | 271 (41-409 style) | Direct |
| White-Rodgers | 767A-370 | Direct |
| Supco | IG409, IG409K, SIG-409 | Direct |
| DiversiTech | IGN-409, 780-409 | Direct |
| MARS | 67920 | Direct |
| Johnstone Supply | L37-816 | Direct |
| Carrier / Bryant / Payne | LH33ZS001A, LH33ZS002, LH33ZS004 (silicon carbide versions) | Replacement |
| Ducane | 20015201 | Replacement |
| Snyder General / Arco Aire | 1380680, 1380672 | Replacement |
| Other | AF1409, L45-546 | Replacement |
Installation & safety
Shut off gas and power before installing. Handle the igniter by the ceramic base or bracket only. Never touch the silicon carbide element: skin oil causes hot spots and early failure. Connect with the included ceramic wire nuts or plug, then run a heat cycle to confirm ignition.
Returns
Returns accepted within 15 days if new and unused. See our Refund and Returns Policy.
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