What igniter fits my ICP furnace?

The correct replacement for ICP model RGS121LFCA0AAA — With Wiring Harness | 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 RGS121LFCA0AAA — With Wiring Harness | 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 for RGS121LFCA0AAA — With Wiring Harness | Ships Today

Name: ICP Hot Surface Igniter Kit for RGS121LFCA0AAA — With Wiring Harness | Ships Today
Brand: ICP
SKU: 1171306
Price: 50.64 USD
Availability: InStock

SKU: 1171306 Brand: ICP

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Overview

This OEM hot surface igniter kit for the ICP Tempstar Heil RGS121LFCA0AAA gas furnace includes the igniter (part 1171306) and the matching igniter wiring kit (part 1188370). On every heat call, the control board energizes the igniter, which glows red-hot to ignite the main burners; the wiring kit provides the correct connector and lead to tie the igniter into the harness. Hot surface igniters are a brittle, high-wear part that degrades with each thermal cycle and eventually cracks or fails to reach ignition temperature — the most common cause of a furnace that blows cold air or locks out. This kit restores reliable ignition with the proper igniter and pre-terminated wiring.

Specifications

Spec	Value
Part Number	1171306 (Igniter), 1188370 (Wiring Kit)
Type	Hot Surface Igniter
Brand	ICP / Tempstar / Heil
Includes	Igniter + Wiring Harness Kit
Fitment	OEM Exact Replacement
Application	Furnace Burner Ignition

Compatibility

Built for the ICP Tempstar Heil RGS121LFCA0AAA gas furnace and related RGS-series furnaces using a hot surface igniter. Handle the igniter only by its ceramic base — skin oils and finger contact shorten its life.

Installation Guide

Safety First — Disconnect power at the furnace switch and breaker; verify zero voltage with a multimeter.
Access — Remove the furnace burner/service panel.
Document — Photo the igniter position, bracket, and wiring routing before removal.
Remove — Unplug the igniter lead, remove the mounting screw, and carefully withdraw the fragile old igniter.
Install — Mount the new igniter by its ceramic base, connect the new wiring kit, and route the lead away from heat per your photo.
Test — Restore power, start a heat cycle, and confirm the igniter glows and the burners light.

Signs You Need a Replacement

Furnace blows cold air or fails to light the burners
Igniter does not glow during the ignition sequence
Visible cracks, chips, or white-spotting on the igniter element
Repeated ignition lockouts or short cycling on a heat call

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 for ...

$50.64

Frequently Asked Questions

Does this Igniter fit my ICP RGS121LFCA0AAA — With Wiring Harness | Ships Today?

Yes. This is the factory-specified OEM igniter for the ICP RGS121LFCA0AAA — With Wiring Harness | 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 RGS121LFCA0AAA — With Wiring Harness | 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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