What igniter fits my Tempstar furnace?

The correct replacement for Tempstar model T9MPV125L20B1 — Silicon Nitride HSP | Ships Today is this exact part. It is the factory-specified replacement with exact OEM specifications. Using a part with different specifications can cause equipment damage or void your warranty. You can verify this by checking the data plate on your Tempstar equipment which lists the model number T9MPV125L20B1 — Silicon Nitride HSP | Ships Today.

My furnace will not ignite. What part is bad?

A furnace that will not ignite after the draft inducer runs typically has a failed igniter. The hot surface igniter should glow bright orange within 60 seconds. If it does not glow at all, it is cracked or burned out. If it glows weakly, it is degrading and should be replaced preventively. Average lifespan: 3 to 7 years.

Is this igniter compatible with Bryant or Payne systems too?

Many Tempstar parts are cross-compatible with Bryant and Payne systems since all three brands are manufactured by Carrier Global Corporation. The same physical part is often used across multiple brand labels with different model numbers. To verify cross-compatibility, check your Bryant or Payne equipment service manual for cross-compatible part numbers, or contact info@nationalhvacparts.com with your model number for confirmation.

Tempstar

Tempstar Hot Surface Igniter/Sensor for T9MPV125L20B1 — Silicon Nitride HSP | Ships Today

Name: Tempstar Hot Surface Igniter/Sensor for T9MPV125L20B1 — Silicon Nitride HSP | Ships Today
Brand: Tempstar
SKU: 1009524-GEN
Price: 38.00 USD
Availability: InStock

SKU: 1009524-GEN Brand: Tempstar

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Overview

This OEM hot surface igniter/sensor, part number 1009524, is a silicon-nitride HSP-style ignition and flame-sensing component for the Tempstar T9MPV125L20B1 two-stage gas furnace. It lights the burners on a heat call and then helps confirm flame presence, so the control board can keep the gas valve open. Silicon-nitride igniters are durable but still the most-replaced furnace part — they crack from thermal cycling, oil contamination from bare-handed handling, or impact. When this part fails the furnace will run the inducer and blower but never produce heat, or will short-cycle into lockout when flame is not proven.

Specifications

Spec	Value
Part Number	1009524 (IGNITOR/SENSOR HSP SK)
Type	Hot Surface Igniter / Sensor (silicon nitride)
Brand	Tempstar / ICP / Heil
Voltage	120V
Application	Two-stage gas furnace ignition & flame sensing
Fitment	OEM direct replacement

Compatibility

Engineered for the Tempstar T9MPV125L20B1 9-series two-stage variable-speed gas furnace and shared across the ICP / Heil / Comfortmaker family that uses the 1009524 silicon-nitride igniter/sensor. Always confirm the part number on your existing igniter 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, wiring, and connector before disconnecting.
Remove — Unplug the harness, remove the mounting screw, and lift out the old igniter without touching the ceramic element.
Install — Seat the new igniter/sensor in the bracket, handling it only by the base, secure the screw, and reconnect the harness.
Test — Restore gas and power, then watch a full ignition cycle to confirm the igniter glows, the burners light, and flame stays proven.

Signs You Need a Replacement

Furnace runs the blower but produces no heat.
Igniter shows visible cracks or no longer glows.
Short-cycling or lockout because flame is not proven.
Burners fail to light despite an open gas valve.

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

Tempstar Hot Surface Igniter/Sen...

$38.00

Frequently Asked Questions

Does this Igniter fit my Tempstar T9MPV125L20B1 — Silicon Nitride HSP | Ships Today?

Yes. This is the factory-specified OEM igniter for the Tempstar T9MPV125L20B1 — Silicon Nitride HSP | Ships Today. It is a direct drop-in replacement that fits without modification. Always verify the model number on your equipment nameplate before ordering.

How do I replace the igniter on my Tempstar T9MPV125L20B1 — Silicon Nitride HSP | Ships Today?

Difficulty: Medium (20–30 min)
Step 1: Turn off power and gas. Step 2: Open furnace panel. Step 3: Locate igniter near burners. Step 4: Disconnect two-wire plug. Step 5: Remove mounting screw. Step 6: Install new igniter — do NOT touch element with fingers. Step 7: Reconnect, close panel, restore power/gas.

My furnace won’t ignite. What part is bad?

Furnace won’t ignite after the draft inducer runs = failed igniter. The hot surface igniter should glow bright orange within 60 seconds. No glow = cracked/burned out. Weak glow = degrading. Average lifespan: 3–7 years. Replacement: $15–$40 DIY.

Is this igniter compatible with Bryant or Payne too?

Many Tempstar parts are cross-compatible with Bryant and Payne since all three brands are manufactured by Carrier Global Corporation. The same physical part is often used across brand labels with different model numbers. To verify: check your Bryant or Payne equipment service manual for cross-compatible part numbers, or email info@nationalhvacparts.com with your model number.

Should I use OEM or aftermarket for my Tempstar igniter?

OEM recommended for reliability and warranty compatibility. OEM parts match exact factory specifications for proper fit, performance, and safety. While aftermarket alternatives cost less upfront, the risk of improper fit and reduced lifespan usually makes OEM the better value long-term.

How fast does National HVAC Parts ship?

Orders placed before 3:00 PM CST ship the same business day. Standard delivery is 2–5 business days anywhere in the continental United States. Express shipping available at checkout. We ship from Houston, TX to all 50 states. 30-day return policy on all parts.

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