What igniter fits my ICP furnace?

The correct replacement for ICP model RGS121HDAA0AAAA — OEM Ignitor | 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 ICP equipment which lists the model number RGS121HDAA0AAAA — OEM Ignitor | 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.

ICP

ICP Hot Surface Igniter & Wiring Kit for RGS121HDAA0AAAA — OEM Ignitor | Ships Today

Name: ICP Hot Surface Igniter & Wiring Kit for RGS121HDAA0AAAA — OEM Ignitor | Ships Today
Brand: ICP
SKU: 1171306
Price: 41.60 USD
Availability: InStock

SKU: 1171306 Brand: ICP

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Overview

This genuine OEM ignition set for the ICP / Tempstar / Heil RGS121HDAA0AAAA gas furnace includes the hot surface igniter (part 1171306) and its matching igniter wiring kit (part 1188370). The hot surface igniter is the glow element that heats to roughly 1,800–2,500°F on a call for heat to ignite the burners; the wiring kit supplies the correct leads and connector to power it from the furnace control board. Igniters are a wear item — the brittle silicon-carbide or nitride element degrades with every heating cycle and eventually cracks or fails to glow, leaving the furnace unable to light. Replacing the igniter along with a fresh wiring harness restores dependable ignition and eliminates connector-related no-heat faults.

Specifications

Spec	Value
Part Number (Igniter)	1171306
Part Number (Wiring Kit)	1188370
Type	Hot Surface Igniter w/ Wiring Kit
Brand	ICP (Tempstar / Heil / Comfortmaker)
Fit	OEM Direct Replacement
Application	Gas Furnace Burner Ignition

Compatibility

Designed for the ICP / Tempstar / Heil RGS121HDAA0AAAA furnace and related RGS-series models using the same hot surface ignition system. Verify the igniter shape and connector against your unit before ordering.

Installation Guide

Safety First — Disconnect power at the furnace switch and breaker, then verify zero voltage with a multimeter.
Access — Remove the burner compartment service panel.
Document — Photograph the igniter position and wiring connector before removing anything.
Remove — Unplug the igniter harness, remove the mounting screw, and lift out the old igniter. Handle the new element only by its ceramic base — never touch the glow element.
Install — Mount the new igniter in the same position, route and connect the new wiring kit to the control board.
Test — Restore power, start a heat cycle, and confirm the igniter glows and the burners light promptly.

Signs You Need a Replacement

Furnace blower runs but burners never ignite (no heat)
Igniter does not glow on a call for heat
Visible cracks, white spots, or breaks in the glow element
Repeated ignition lockouts or short-cycling on the control board

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

ICP Hot Surface Igniter & Wiring...

$41.60

Frequently Asked Questions

Does this Igniter fit my ICP RGS121HDAA0AAAA — OEM Ignitor | Ships Today?

Yes. This is the factory-specified OEM igniter for the ICP RGS121HDAA0AAAA — OEM Ignitor | 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 ICP RGS121HDAA0AAAA — OEM Ignitor | 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 ICP 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 ICP 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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