Tempstar Hot Surface Igniter for T8MPT075F14A1 — Silicon Nitride HSI/Sensor Kit | Ships Today
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Overview
This OEM hot surface igniter and sensor kit (part number 1009524) is the factory ignition component for the Tempstar T8MPT075F14A1 gas furnace. The hot surface igniter (HSI) is a 120V silicon nitride element that glows red-hot to ignite the burner gas on each heat call, then doubles as a flame-sensing reference in this combined HSP service kit. Silicon nitride construction resists the thermal shock and cracking that retire older silicon carbide igniters. When this part fails the furnace will typically lock out on ignition failure: the inducer and blower may cycle, but the burners never light, leaving the home without heat. A cracked, eroded, or open igniter is one of the most common no-heat furnace failures.
Specifications
| Spec | Value |
|---|---|
| Part Number | 1009524 |
| Type | Hot Surface Igniter / Sensor Kit (HSP) |
| Brand | Tempstar (ICP / Heil platform) |
| Element Material | Silicon Nitride |
| Voltage | 120V |
| Application | Gas Furnace Ignition |
| Fitment | OEM Replacement |
Compatibility
Engineered for the Tempstar T8MPT075F14A1 furnace and the shared ICP / Heil / Comfortmaker family that uses the same ignition control. Always confirm your model and serial against the unit rating plate before ordering.
Installation Guide
- Safety First — Disconnect power at the furnace switch and breaker, shut off the gas, and verify zero voltage with a multimeter.
- Access — Remove the burner compartment service panel.
- Document — Photograph the igniter bracket and wiring before disconnecting anything.
- Remove — Unplug the igniter harness connector and remove the mounting screw; lift the old igniter out carefully, handling only the ceramic base — never touch the element.
- Install — Seat the new igniter so the element sits in the burner flame path, secure the screw, and reconnect the harness per your photo.
- Test — Restore gas and power, call for heat, and confirm the igniter glows and the burners light within the normal trial-for-ignition window.
Signs You Need a Replacement
- No heat — burners never ignite despite the inducer running
- Furnace locks out and the control flashes an ignition-failure code
- Visible crack, blistering, or white erosion on the igniter element
- Igniter no longer glows, or glows dimly, on a heat call
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