What igniter fits my ICP furnace?

The correct replacement for ICP model RGS121SRAA0AAAA — With Wiring Kit | 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 RGS121SRAA0AAAA — With Wiring Kit | 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 for RGS121SRAA0AAAA — With Wiring Kit | Ships Today

Name: ICP Hot Surface Igniter for RGS121SRAA0AAAA — With Wiring Kit | Ships Today
Brand: ICP
SKU: 1171306
Price: 55.84 USD
Availability: InStock

SKU: 1171306 Brand: ICP

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Overview

This OEM hot surface igniter kit for the ICP/Tempstar/Heil RGS121SRAA0AAAA gas furnace includes the igniter (part #1171306) and its matched wiring kit/harness (part #1188370). On each call for heat, the furnace control board sends line voltage to the igniter, which glows white-hot to light the gas at the burners. Igniters are brittle and degrade over thousands of heating cycles. A cracked or worn igniter is one of the most common causes of no-heat calls — the furnace will run its sequence, the inducer and gas valve will activate, but the burners never light, and the board typically locks out after several failed trials. The included wiring kit ensures a clean, corrosion-free electrical connection so the new igniter receives full voltage.

Specifications

Spec	Value
OEM Part Numbers	1171306 (igniter), 1188370 (wiring kit)
Type	Hot Surface Igniter
Brand	ICP (Tempstar / Heil / Comfortmaker)
Application	Gas Furnace Burner Ignition
Includes	Igniter + Wiring Harness Kit

Compatibility

Direct-fit OEM replacement for the ICP/Tempstar/Heil RGS121SRAA0AAAA furnace. Replaces ICP part numbers 1171306 and 1188370. Handle the igniter element only by its ceramic base — skin oils and contact can shorten its life.

Installation Guide

Safety First — Shut off gas and disconnect power to the furnace; verify zero voltage with a multimeter.
Access — Remove the burner compartment door.
Document — Photograph the igniter bracket position and the wiring harness routing.
Remove — Unplug the igniter harness, remove the mounting screw, and lift out the old igniter without touching the element.
Install — Mount the new igniter so the element aligns with the burner flame path, then connect the new wiring kit.
Test — Restore gas and power, call for heat, and confirm the igniter glows and the burners light within the trial period.

Signs You Need a Replacement

Furnace runs its sequence but burners never ignite
Visible cracks or chips in the igniter element
Control board locks out after repeated ignition trials
Igniter glows weakly or not at all on a call for heat

Shipping & Returns

Ships same day on orders placed 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 for RGS1...

$55.84

Frequently Asked Questions

Does this Igniter fit my ICP RGS121SRAA0AAAA — With Wiring Kit | Ships Today?

Yes. This is the factory-specified OEM igniter for the ICP RGS121SRAA0AAAA — With Wiring Kit | 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 RGS121SRAA0AAAA — With Wiring Kit | 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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