ICP Hot Surface Igniter for X9MPV075F12B1 — Silicon Nitride HSI Kit | Ships Today
OEM Guaranteed
Same-Day Ship
30-Day Returns
Secure Checkout
Overview
This is the OEM hot surface igniter (HSI) for the ICP / Heil / Tempstar X9MPV075F12B1 two-stage variable-speed gas furnace. The igniter (OEM #1172533) is a silicon nitride element that heats to roughly 2,500°F to ignite the burner gas on each call for heat. It works in concert with the flame sensor (#1172543) and the two-stage gas valve (#1172542) to complete a safe ignition sequence. When the igniter cracks, carbonizes, or fails open, the furnace will not light — the most common no-heat symptom on this model. Replacing the HSI is the standard first repair when the burners do not ignite but the inducer and blower still run.
Specifications
| Spec | Value |
|---|---|
| Primary Part Number | 1172533 (Igniter HSI) |
| Related Part Numbers | 1172543 (Flame Sensor), 1172542 (2-Stage Gas Valve, VR8205Q) |
| Type | Hot Surface Igniter — Silicon Nitride |
| Brand | ICP / Heil / Tempstar / Comfortmaker |
| Voltage | 120V |
| Application | Gas Furnace Ignition |
| Fitment | OEM Direct Replacement |
Compatibility
Engineered as a direct OEM replacement for the ICP/Heil/Tempstar X9MPV075F12B1 75,000 BTU two-stage variable-speed gas furnace. The same igniter platform is shared across many 9-series ICP-built furnaces sold under the Heil, Tempstar, Comfortmaker, and Arcoaire labels. Always verify your existing OEM part number (1172533) before ordering.
Installation Guide
- Safety First — Disconnect power at the furnace switch and breaker; close the gas shutoff and verify zero voltage with a multimeter.
- Access — Remove the lower burner-compartment service panel.
- Document — Photograph the igniter mounting bracket and wire routing before disconnecting.
- Remove — Unplug the igniter connector, remove the mounting screw(s), and lift the old igniter out carefully. Never touch the ceramic element with bare fingers — skin oils shorten its life.
- Install — Seat the new igniter on the bracket, secure the screw, and reconnect the plug per your photo. Confirm the element sits in the burner flame path without touching metal.
- Test — Restore gas and power, then run a heat cycle and confirm the igniter glows bright orange and the burners light within a few seconds.
Signs You Need a Replacement
- Furnace inducer runs but burners never ignite (no heat).
- Visible cracks, blistering, or white/gray carbon buildup on the ceramic element.
- Igniter glows weakly or not at all during a call for heat.
- Repeated lockouts after several failed ignition attempts.
Shipping & Returns
Ships same day before 3 PM CST. 30-day returns. Backed by the National HVAC Parts fitment guarantee.
Shipping Information
- Orders placed before 3PM CST ship same business day
- Standard delivery: 2-5 business days
- Express shipping available at checkout
- Free shipping on orders over $75
- Tracking number emailed upon shipment
Return Policy
- 30-day returns on unused parts in original packaging
- Electrical parts (capacitors, contactors, control boards) are final sale once installed
- Email info@nationalhvacparts.com to initiate a return
- Refunds processed within 5-7 business days