What igniter fits my Tempstar furnace?

The correct replacement for Tempstar model T9MPX100L20A2 — HSI Ignition | 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 T9MPX100L20A2 — HSI Ignition | 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 T9MPX100L20A2 — HSI Ignition | Ships Today

Name: Tempstar Hot Surface Igniter for T9MPX100L20A2 — HSI Ignition | Ships Today
Brand: Tempstar
SKU: 1172533-GEN
Price: 34.00 USD
Availability: InStock

SKU: 1172533-GEN Brand: Tempstar

OEM Guaranteed

Same-Day Ship

30-Day Returns

Secure Checkout

Texas CMBL #19328542014

SAM.gov Registered

Govt POs Accepted

Overview

This OEM hot surface igniter (HSI, part #1172533) lights the burners on your Tempstar T9MPX100L20A2 gas furnace. On a heat call the control board energizes the igniter until it glows red-hot, igniting gas metered by the VR8205S snap-disc gas valve (#1175705). The silicon-nitride element is fragile and wears with every heating cycle, making it one of the most common no-heat failure points. When the igniter cracks or burns out, the inducer and gas valve will cycle but the burners never light, and the furnace usually locks out on ignition failure.

Specifications

Spec	Value
Part Number	1172533
Type	Hot Surface Igniter (HSI)
Brand	Tempstar (ICP / Heil)
Ignition System	Gas (HSI)
Related Gas Valve	1175705 (VR8205S snap)

Compatibility

Direct OEM fit for the Tempstar T9MPX100L20A2 gas furnace and shared across many ICP-family furnaces sold under the Tempstar, Heil, Comfortmaker, and Arcoaire brands. Handle the element only by its ceramic base, as skin oils shorten its service life. Verify the printed part number before ordering.

Installation Guide

Safety First — Shut off gas and disconnect electrical power at the switch and breaker; verify zero voltage with a multimeter.
Access — Remove the burner compartment service panel.
Document — Photograph the igniter's position, bracket orientation, and wire harness before disconnecting.
Remove — Unplug the igniter connector, remove the mounting screw(s), and lift the element out without touching the ceramic tip.
Install — Seat the new igniter at the correct depth over the burner, secure the bracket, and reconnect the harness.
Test — Restore gas and power, then watch a full cycle to confirm the igniter glows and the burners light promptly.

Signs You Need a Replacement

Inducer and gas valve cycle but burners never ignite
Furnace locks out on ignition-failure code after multiple tries
Visible crack, split, or burned spot on the igniter element
Igniter shows no glow or measures open/out-of-spec resistance

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...

$34.00

Frequently Asked Questions

Does this Igniter fit my Tempstar T9MPX100L20A2 — HSI Ignition | Ships Today?

Yes. This is the factory-specified OEM igniter for the Tempstar T9MPX100L20A2 — HSI Ignition | 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 T9MPX100L20A2 — HSI Ignition | 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.

Menu