Tempstar Hot Surface Igniter for T9UHX080J12A1 — HSI Furnace Ignitor | Ships Today

Overview

This is the OEM hot surface igniter (OEM part 1172533, HSI) for the Tempstar T9UHX080J12A1 gas furnace, used with the matching VR8205S snap-mount gas valve (OEM part 1172821). The igniter is an electrically heated element that glows orange-hot to ignite the gas at the burners on each heat call. It is one of the most common furnace wear items because the element becomes brittle with thousands of heat cycles and eventually cracks. When it fails, the furnace inducer and blower may run but the burners never light, and the control board typically locks out after several failed ignition attempts.

Specifications

Compatibility

Direct-fit replacement for the Tempstar T9UHX080J12A1 furnace and compatible ICP/Heil/Comfortmaker models using the 1172533 hot surface igniter. Confirm your existing igniter mounting style and connector match before installing.

Installation Guide

1. Safety First — Shut off gas and disconnect power at the furnace switch and breaker, then verify zero voltage with a multimeter.
2. Access — Remove the burner-compartment service panel.
3. Document — Photograph the igniter position, bracket, and wire connector before removal.
4. Remove — Unplug the igniter connector and remove the mounting screw, handling the old element only by its ceramic base.
5. Install — Mount the new igniter without touching the element surface with bare fingers, then reconnect the wiring per your photo.
6. Test — Restore gas and power, then watch a full ignition cycle to confirm the element glows and the burners light.

Signs You Need a Replacement

• Furnace cycles but burners never ignite.
• Control board locks out after 3 failed ignition tries.
• Igniter element is visibly cracked, blistered, or no longer glows.
• No resistance reading across the igniter terminals.

Shipping & Returns

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