What igniter fits my Tempstar furnace?

The correct replacement for Tempstar model T9UHX100L20A1 — HSI 120V | 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 T9UHX100L20A1 — HSI 120V | 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 T9UHX100L20A1 — HSI 120V | Ships Today

Name: Tempstar Hot Surface Igniter for T9UHX100L20A1 — HSI 120V | Ships Today
Brand: Tempstar
SKU: 1172533-GEN
Price: 33.00 USD
Availability: InStock

SKU: 1172533-GEN Brand: Tempstar

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Overview

This OEM hot surface igniter (HSI, part #1172533) lights the burners in your Tempstar T9UHX100L20A1 gas furnace. On each call for heat the control board energizes the igniter, which glows white-hot to ignite gas at the burner ports. The element is heated and cooled hundreds of times per heating season, so it grows brittle over time and is among the most common no-heat failures. Watch for the blower running with no flame, no glow on a heat call, repeated ignition lockouts, or short-cycling during the ignition sequence. Related gas valve 1172821 (VR8205S) is used in the same ignition circuit.

Specifications

Spec	Value
Part Number	1172533
Type	Hot Surface Igniter (HSI)
Brand	Tempstar
Voltage	120 VAC
Related Gas Valve	1172821 (Honeywell VR8205S)
Fitment	OEM

Compatibility

Direct OEM replacement igniter for the Tempstar T9UHX100L20A1 gas furnace and matching ICP/Heil/Comfortmaker variants that use the same HSI assembly. Match the mounting bracket and plug connector to your existing igniter before installing.

Installation Guide

Safety First — Shut off gas and disconnect power to the furnace, then verify zero voltage with a multimeter.
Access — Remove the furnace burner/service panel to reach the igniter.
Document — Photograph the igniter position, wire routing, and connector before disconnecting.
Remove — Unplug the igniter connector and remove the mounting screw; handle by the ceramic base only, never the element.
Install — Mount the new igniter without touching the element with bare fingers, and reconnect the plug.
Test — Restore gas and power, call for heat, and confirm the igniter glows and lights the burners.

Signs You Need a Replacement

Blower runs but burners never light (no heat)
No glow at the igniter on a heat call
Visible cracks or breaks in the igniter element
Repeated ignition lockouts or short-cycling

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...

$33.00

Frequently Asked Questions

Does this Igniter fit my Tempstar T9UHX100L20A1 — HSI 120V | Ships Today?

Yes. This is the factory-specified OEM igniter for the Tempstar T9UHX100L20A1 — HSI 120V | 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 T9UHX100L20A1 — HSI 120V | 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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