What igniter fits my Tempstar furnace?

The correct replacement for Tempstar model TCK125N20A1 — Silicon Nitride | 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 TCK125N20A1 — Silicon Nitride | 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 for TCK125N20A1 — Silicon Nitride | Ships Today

Name: Tempstar Hot Surface Igniter for TCK125N20A1 — Silicon Nitride | Ships Today
Brand: Tempstar
SKU: 1009524-GEN
Price: 34.95 USD
Availability: InStock

SKU: 1009524-GEN Brand: Tempstar

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Overview

The genuine OEM hot surface igniter (part #1009524, IGNITOR/SENSOR HSP) for the Tempstar TCK125N20A1 gas furnace. This silicon nitride hot surface igniter glows to roughly 2,500°F to ignite the gas at the burners on each call for heat, and on this platform it also serves the flame-proving sensing function. Hot surface igniters are the most common furnace heating failure: the brittle element cracks from thermal cycling, vibration, or being touched during service. A cracked igniter produces no glow, an open circuit, and a furnace that will not light.

Specifications

Spec	Value
Part Number	1009524
Type	Hot Surface Igniter / Sensor (HSI)
Element	Silicon nitride
Brand	Tempstar (ICP / Heil)
Voltage	120V
Fit	OEM exact replacement

Compatibility

Built for the Tempstar TCK125N20A1 and used across many ICP-family furnaces (Tempstar, Heil, Comfortmaker, Arcoaire). Match the mounting bracket and connector to your existing igniter before installing.

Installation Guide

Safety First — Shut off gas and disconnect power at the switch and breaker; verify zero voltage with a multimeter.
Access — Remove the burner-compartment service panel.
Document — Photograph the igniter position, bracket, and wire routing before disconnecting.
Remove — Unplug the igniter connector, remove the mounting screw, and carefully lift out the old igniter, handling it only by the ceramic base — never the element.
Install — Set the new igniter in the exact factory position, secure the screw, and reconnect the plug. Do not touch the silicon nitride element with bare fingers.
Test — Restore gas and power, call for heat, and confirm the igniter glows and the burners light cleanly.

Signs You Need a Replacement

Furnace tries to start but burners never light (no glow)
Visible crack or break in the igniter element
Open circuit / no continuity across the igniter
Repeated ignition lockouts after several retries

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.

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 for...

$34.95

Frequently Asked Questions

Does this Igniter fit my Tempstar TCK125N20A1 — Silicon Nitride | Ships Today?

Yes. This is the factory-specified OEM igniter for the Tempstar TCK125N20A1 — Silicon Nitride | 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 TCK125N20A1 — Silicon Nitride | 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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