ICP Hot Surface Igniter for X8MPN075B12A3 — HSI Kit | Ships Today
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Overview
This is the genuine OEM hot surface igniter (part number 1172533) for the ICP Tempstar Heil X8MPN075B12A3 gas furnace. The hot surface igniter (HSI) glows red-hot on a thermostat call and ignites the burner gas as the gas valve opens. It works alongside the flame sensor (1172543) that proves the flame and the snap-acting gas valve (1172541, Honeywell VR8205S) that meters fuel — together these make up the furnace's ignition system. The igniter is the most frequently replaced ignition component because its element is brittle and degrades with every heating cycle. A cracked or burned-out igniter is the leading cause of a furnace that clicks, draws but never lights, and locks out on failed ignition.
Specifications
| Spec | Value |
|---|---|
| Part Number | 1172533 |
| Type | Hot Surface Igniter (HSI) |
| Brand | ICP / Tempstar / Heil |
| Related Flame Sensor | 1172543 |
| Related Gas Valve | 1172541 (Honeywell VR8205S) |
| Application | Furnace burner ignition |
Compatibility
Designed for the ICP Tempstar Heil X8MPN075B12A3 gas furnace and other N-series furnaces using the same HSI ignition platform. Handle the igniter only by its ceramic base — skin oils shorten element life.
Installation Guide
- Safety First — Disconnect power at the furnace switch and breaker, shut off the gas supply, and verify zero voltage with a multimeter.
- Access — Remove the furnace burner-compartment service panel.
- Document — Photograph the igniter bracket position and wiring connector before disconnecting.
- Remove — Unplug the igniter lead, remove the mounting screw, and carefully withdraw the old igniter without touching the element.
- Install — Seat the new igniter at the correct depth and alignment to the burner, fasten the screw, and reconnect the lead per your photo.
- Test — Restore gas and power, then watch a full ignition cycle to confirm the igniter glows and the burner lights and stays lit.
Signs You Need a Replacement
- Igniter no longer glows during the ignition sequence
- Visible cracks, blisters, or breaks in the ceramic element
- Furnace clicks and the inducer runs but the burner never lights
- Control board locks out after repeated 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