What igniter fits my Tempstar furnace?

The correct replacement for Tempstar model T8DNL125L20B2 — OEM 1172533 | 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 T8DNL125L20B2 — OEM 1172533 | 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 T8DNL125L20B2 — OEM 1172533 | Ships Today

Name: Tempstar Hot Surface Igniter for T8DNL125L20B2 — OEM 1172533 | Ships Today
Brand: Tempstar
SKU: 1172533-GEN
Price: 29.95 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 genuine OEM hot surface igniter (HSI, part number 1172533) provides the high-temperature ignition source that lights the burners on the Tempstar T8DNL125L20B2 furnace. On each heat call, the control board energizes the igniter, which glows orange-white and ignites the gas as it leaves the burners. This listing covers the igniter for the model's ignition system, which works in conjunction with the Honeywell VR8205S snap-mount gas valve (OEM 1175705). HSI elements are brittle and degrade with thermal cycling — a cracked or worn igniter is one of the most common no-heat failures. Typical symptoms are a furnace that clicks and tries to start but never lights, short cycling on ignition lockout, or a visibly cracked igniter element.

Specifications

Spec	Value
Igniter Part Number	1172533
Type	Hot Surface Igniter (HSI)
Brand	Tempstar (ICP / Heil)
Paired Gas Valve	VR8205S (OEM 1175705)
Application	Gas furnace burner ignition
OEM Replacement	Yes

Compatibility

Designed for the Tempstar T8DNL125L20B2 furnace and other ICP-family (Tempstar, Heil, Comfortmaker) furnaces using the 1172533 hot surface igniter with the Honeywell VR8205S gas valve system. Confirm the igniter mounting and connector match your existing unit before installing.

Installation Guide

Safety First — Disconnect power at the furnace disconnect and shut off the gas; verify zero voltage with a multimeter.
Access — Remove the furnace burner-compartment service panel.
Document — Photograph the igniter bracket, connector, and routing before disconnecting.
Remove — Unplug the igniter harness, remove the mounting screw, and lift out the old igniter — handle by the ceramic base only, never the element.
Install — Mount the new igniter, reconnect the harness, and confirm proper clearance from the burner.
Test — Restore gas and power, run a heat cycle, and verify the igniter glows and burners light reliably.

Signs You Need a Replacement

Furnace attempts ignition but burners never light
Visibly cracked, chipped, or blistered igniter element
Igniter does not glow on a heat call
Repeated ignition lockout or short cycling

Shipping & Returns

Ships same day before 3 PM CST. 30-day returns. 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...

$29.95

Frequently Asked Questions

Does this Igniter fit my Tempstar T8DNL125L20B2 — OEM 1172533 | Ships Today?

Yes. This is the factory-specified OEM igniter for the Tempstar T8DNL125L20B2 — OEM 1172533 | 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 T8DNL125L20B2 — OEM 1172533 | 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