What igniter fits my Tempstar furnace?

The correct replacement for Tempstar model T8DNL050B12B1 — 120V Silicon Carbide HSI | 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 T8DNL050B12B1 — 120V Silicon Carbide HSI | 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 T8DNL050B12B1 — 120V Silicon Carbide HSI | Ships Today

Name: Tempstar Hot Surface Igniter for T8DNL050B12B1 — 120V Silicon Carbide HSI | Ships Today
Brand: Tempstar
SKU: 1172533-GEN
Price: 32.00 USD
Availability: InStock

SKU: 1172533-GEN Brand: Tempstar

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Overview

This OEM hot surface igniter (HSI) is the ignition source for the Tempstar T8DNL050B12B1 gas furnace. When the thermostat calls for heat, the furnace control board sends 120V to this silicon-carbide element, which glows white-hot to ignite the gas at the burners. It is one of the most common furnace failure points because the brittle element degrades with every heating cycle. Symptoms of a failed igniter include no ignition, the furnace blower running with cold air, repeated lockouts after several ignition attempts, or a visibly cracked or burned element. This listing covers OEM part 1172533 (IGNITOR HSI); the related gas valve assembly part 1172821 (VALVE N HSI SNAP HW VR8205S) shares the same ignition system on this model.

Specifications

Spec	Value
Part Number	1172533
Type	Hot Surface Igniter (HSI)
Brand	Tempstar
Element	Silicon Carbide
Voltage	120V
Fit	OEM Direct Replacement

Compatibility

Engineered for the Tempstar T8DNL050B12B1 gas furnace and other ICP/Heil/Comfortmaker family furnaces using the same ignition control. Always confirm your existing igniter part number and mounting bracket before installing.

Installation Guide

Safety First — Disconnect power at the furnace switch and breaker; shut off the gas. Verify zero voltage with a multimeter.
Access — Remove the furnace burner compartment service panel.
Document — Photograph the igniter wiring, connector, and bracket position before disconnecting.
Remove — Unplug the igniter connector and remove the mounting screw. Handle the old igniter by the ceramic base only.
Install — Mount the new igniter without touching the element with bare fingers; reconnect the harness per your photo.
Test — Restore gas and power, then run a full heat cycle and confirm the element glows and the burners light.

Signs You Need a Replacement

Furnace blows cold air or fails to ignite
Repeated ignition lockouts after 3-4 tries
No glow visible at the igniter during a call for heat
Cracked, chipped, or burned-through 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

Tempstar Hot Surface Igniter for...

$32.00

Frequently Asked Questions

Does this Igniter fit my Tempstar T8DNL050B12B1 — 120V Silicon Carbide HSI | Ships Today?

Yes. This is the factory-specified OEM igniter for the Tempstar T8DNL050B12B1 — 120V Silicon Carbide HSI | 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 T8DNL050B12B1 — 120V Silicon Carbide HSI | 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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