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This OEM hot surface igniter (HSI, part 1172533) is the ignition source for your Tempstar T9MPX060F12A2 gas furnace. On each heat call the control board energizes the igniter, which glows red-hot to ignite the gas released by the VR8205S gas valve (OEM 1175705). HSIs are a wear item — the silicon carbide or silicon nitride element becomes brittle with thermal cycling and eventually cracks or fails to reach ignition temperature, leaving you with no heat. A no-ignition lockout, where the furnace tries several times and then shuts down, is the classic symptom of a failed igniter.
| Spec | Value |
|---|---|
| OEM Part Number | 1172533 (Igniter) |
| Compatible Valve | 1175705 — Honeywell VR8205S |
| Type | Hot Surface Igniter (HSI) |
| Brand | Tempstar (ICP / Heil) |
| Voltage | 120 VAC |
| Application | Gas Furnace Ignition |
Direct-fit replacement for the Tempstar T9MPX060F12A2 gas furnace and paired with the snap-mount Honeywell VR8205S gas valve (1175705). The 1172533 igniter is shared across many ICP, Heil, Comfortmaker, and Carrier-built furnaces using the same burner assembly. Handle the element by the ceramic base only — skin oils shorten igniter life.
Ships same day on orders placed before 3 PM CST. 30-day hassle-free returns. Backed by the National HVAC Parts fitment guarantee.