Tempstar Hot Surface Igniter/Sensor for TDE100F16G1 — Silicon Nitride HSI | Ships Today

Overview

This is the genuine OEM hot surface igniter/sensor (part number 1009524, HSP SK) for the Tempstar TDE100F16G1 gas furnace. The igniter glows hot on a call for heat to ignite the gas burners, and the integrated sensor confirms flame is present. This silicon-nitride-style igniter is more durable and resistant to thermal shock than older silicon carbide elements. A failed igniter is the single most common cause of a furnace that runs the inducer and blower but never lights, leaving the home cold despite a working thermostat and gas supply.

Specifications

Compatibility

Built for the Tempstar TDE100F16G1 and shared across many ICP-family furnaces (Tempstar, Heil, Comfortmaker, Arcoaire) using the HSP SK ignitor/sensor platform. Verify your original igniter mounting and connector match before ordering.

Installation Guide

1. Safety First — Disconnect power at the breaker and verify zero voltage with a multimeter. Shut off the gas supply.
2. Access — Remove the burner compartment service panel.
3. Document — Photograph the igniter position, bracket, and wiring connector before disconnecting.
4. Remove — Unplug the igniter connector, remove the mounting screw(s), and carefully withdraw the old igniter without touching the ceramic element.
5. Install — Mount the new igniter by its bracket only (never touch the element with bare fingers), reconnect the wiring, and confirm alignment over the burner.
6. Test — Restore power and gas, then start a heat cycle and confirm the igniter glows and the burners light.

Signs You Need a Replacement

• Furnace runs the inducer/blower but burners never ignite
• Igniter no longer glows on a call for heat
• Visible cracks, breaks, or white blistering on the element
• Short cycling or repeated ignition lockout faults

Shipping & Returns

Ships same day before 3 PM CST. 30-day returns. Backed by the National HVAC Parts fitment guarantee.