Tempstar Hot Surface Igniter/Sensor for T8DNL075B12A1 – HSP Silicon Nitride | Ships Today
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Overview
This is a genuine OEM hot surface igniter/sensor (HSP, part number 1009524) for the Tempstar T8DNL075B12A1 gas furnace. This silicon-nitride style igniter both lights the burner gas and confirms flame, combining ignition and sensing in one rugged component. On each call for heat it glows hot to ignite the burners, then verifies the flame so the control board keeps the gas valve open. Silicon-nitride igniters are far more durable than older silicon-carbide elements, but they still fail with age. A bad igniter/sensor is the usual cause of a furnace that runs its inducer and clicks but never lights, or that lights briefly and then shuts down.
Specifications
| Spec | Value |
|---|---|
| Part Number | 1009524 |
| Type | Hot Surface Igniter/Sensor (HSP) |
| Brand | Tempstar (ICP / Heil) |
| Description | IGNITOR/SENSOR HSP SK |
| Element | Silicon Nitride |
| Function | Combined ignition and flame sensing |
Compatibility
Direct-fit replacement for the Tempstar T8DNL075B12A1 furnace. This 1009524 HSP igniter/sensor is used across ICP-family furnaces (Tempstar, Heil, Comfortmaker, Arcoaire) that use a silicon-nitride combined igniter/sensor. Match the bracket and connector to your original before installing.
Installation Guide
- Safety First – Disconnect power at the furnace switch and breaker and shut off the gas, then verify zero voltage with a multimeter.
- Access – Remove the burner-compartment service panel.
- Document – Photograph the igniter/sensor position, bracket, and wire routing before disconnecting.
- Remove – Unplug the connector and remove the mounting screw; lift the old igniter out, handling the new one only by its base.
- Install – Mount the new igniter/sensor aligned over the burner per your photo, and reconnect the plug.
- Test – Restore gas and power, then run a heat cycle to confirm ignition and that the flame stays lit.
Signs You Need a Replacement
- Inducer runs and clicks but the burners never ignite
- Burners light briefly then shut off on a flame-failure lockout
- Igniter shows cracks, blistering, or no glow on a call for heat
- Out-of-range or infinite resistance reading across the element
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