What igniter fits my ICP furnace?

The correct replacement for ICP model RGS121LFCB0AAA — 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 RGS121LFCB0AAA — 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 Kit with Wiring for RGS121LFCB0AAA — OEM Ignitor | Ships Today

Name: ICP Hot Surface Igniter Kit with Wiring for RGS121LFCB0AAA — OEM Ignitor | Ships Today
Brand: ICP
SKU: 1171306
Price: 49.40 USD
Availability: InStock

SKU: 1171306 Brand: ICP

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Overview

This OEM hot surface igniter kit for the ICP / Heil / Tempstar RGS121LFCB0AAA gas furnace includes the igniter element (part 1171306) and the matching igniter wiring kit (part 1188370). On each call for heat the control board sends voltage to the igniter, which glows red-hot and ignites the gas at the burners. Hot surface igniters are a normal wear item: the silicon carbide or silicon nitride element becomes brittle with thousands of heating cycles and eventually cracks or fails open, leaving the furnace unable to light. The included wiring kit ensures a clean, correct electrical connection — important because a corroded or loose igniter harness causes intermittent no-heat faults that mimic a bad igniter.

Specifications

Spec	Value
Part Numbers	1171306 (Igniter), 1188370 (Wiring Kit)
Type	Hot Surface Igniter
Brand	ICP (Heil / Tempstar / Comfortmaker)
Fits Model	RGS121LFCB0AAA
Includes	Igniter element + igniter wiring kit
Fitment	OEM exact-fit replacement

Compatibility

Built for the ICP-made RGS121LFCB0AAA furnace and related Heil, Tempstar, and Comfortmaker gas furnaces using this hot surface igniter. Match the igniter mounting style and connector before installing.

Installation Guide

Safety First — Disconnect power at the furnace switch and breaker; verify zero voltage with a multimeter. Handle the igniter only by its ceramic base — never touch the element.
Access — Remove the burner compartment service panel.
Document — Photograph the igniter mounting and wire routing before disconnecting.
Remove — Unplug the igniter harness, remove the mounting screw(s), and lift out the old igniter.
Install — Mount the new igniter (do not touch the element), connect the new wiring kit, and secure the harness.
Test — Restore power, call for heat, and confirm the igniter glows and lights the burners.

Signs You Need a Replacement

Furnace will not light on a heat call (no glow)
Cracked, chipped, or visibly broken igniter element
Igniter glows but burners fail to ignite consistently
Intermittent no-heat faults from a corroded or loose harness

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

ICP Hot Surface Igniter Kit with...

$49.40

Frequently Asked Questions

Does this Igniter fit my ICP RGS121LFCB0AAA — OEM Ignitor | Ships Today?

Yes. This is the factory-specified OEM igniter for the ICP RGS121LFCB0AAA — 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 RGS121LFCB0AAA — 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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