Tempstar Hot Surface Igniter for TNE050B12B1 — Silicon Nitride | Ships Today

Overview

The Tempstar 1009524 is a genuine OEM hot surface igniter/sensor (HSP-SK silicon nitride style) for the TNE050B12B1 furnace. On a call for heat the control board energizes the igniter, which heats to incandescence and lights the burner gas. This silicon nitride element is more durable and resistant to thermal shock than older silicon carbide igniters, giving faster, more reliable warm-up and a longer service life. When an igniter fails, the furnace control will typically lock out after several failed ignition attempts. Common failure symptoms include no heat with the blower never reaching burner ignition, a glowing igniter that never lights the gas, a furnace that clicks and then shuts down, or a visibly cracked or broken igniter element. Because the igniter is the single most common no-heat failure point, keeping an OEM replacement on hand restores reliable ignition quickly.

Specifications

Compatibility

This igniter is a direct OEM fit for the Tempstar TNE050B12B1 furnace and is shared across numerous ICP-built Tempstar, Heil, and Comfortmaker gas furnaces using the silicon nitride hot surface ignition system. Match the connector and mounting bracket to your existing unit before installing.

Installation Guide

1. Safety First — Shut off gas and disconnect power at the switch and breaker, then verify zero voltage with a multimeter before working.
2. Access — Remove the burner/control service panel.
3. Document — Photograph the igniter position, bracket, and plug orientation before disconnecting.
4. Remove — Unplug the igniter harness and remove the mounting screw(s); handle the old igniter by the ceramic base only.
5. Install — Mount the new igniter without touching the element with bare fingers (skin oils shorten life), align it to the burner, and reconnect the harness per your photo.
6. Test — Restore gas and power, start a heat cycle, and confirm the igniter glows and lights the burner promptly.

Signs You Need a Replacement

• No heat — furnace locks out after repeated ignition attempts
• Igniter glows but burner never lights
• Visible crack, break, or hot spot on the element
• No glow at all during a heat call (open element)

Shipping & Returns

Ships same day on orders placed before 3 PM CST. 30-day hassle-free returns. Backed by the National HVAC Parts fitment guarantee.