How do I fix Best Furnace Igniter Replacement?

Follow the step-by-step fix guide on this page. The most common causes and solutions for this error code are documented by certified industrial technicians. See the 'Step-by-Step Fix' section above for detailed instructions.

Best Furnace Igniter Replacement — Universal and Brand-Specific Picks — Fix & Diagnosis Guide

A failed hot surface igniter is the #1 reason furnaces don’t start. The igniter glows red-hot to light the gas burners. When it cracks or burns out, you get no heat — and usually an error code.

The fix is almost always a $15–$60 part and 15 minutes of work. No HVAC certification required.

How to Know If Your Igniter Failed

Your furnace will usually show one of these signs:

Error code on furnace control board: Common igniter-related codes:
- Carrier: Code 14 (ignition lockout)
- Goodman/Amana: 6 flashes (pressure switch) or no ignition attempt
- Trane/American Standard: 3 flashes (pressure switch) or 4 flashes (open high limit)
- Lennox: Error 225 (ignition proving failure), Error 231 (lockout)
- Rheem/Ruud: 5 flashes (flame sensor — often related to igniter)
Furnace attempts to start (inducer runs, you hear click/hum) but no ignition and it shuts off
Visual crack in the igniter element — remove and inspect

Quick test with a multimeter: Set to resistance (Ohms). Disconnect the igniter wires and probe both terminals.

Normal reading: 40–200 Ω depending on type (see table below)
Open circuit (OL/infinity): Igniter is burned out — replace it

Igniter Types: Which One Do You Have?

Most residential furnaces use one of three igniter styles:

Type	Shape	Typical resistance	Common brands
Silicon nitride (Si3N4)	Flat rectangular or curved rod	15–50 Ω	Carrier, Bryant, Lennox, Trane
Silicon carbide (SiC)	Forked or fragile flat wafer	40–200 Ω	Older Goodman, Amana, Rheem (pre-2010)
Flat silicon nitride (newer)	Small rectangular, surface-mount style	10–30 Ω	York, Rheem, most post-2015 furnaces

To identify yours: Look at the igniter shape. Silicon carbide (older) is more fragile and dark gray/black. Silicon nitride (newer) is a single white/tan rod or curved element. Most furnaces made after 2010 use silicon nitride.

OEM part number lookup: Check your furnace’s model and serial number (data plate inside the furnace door) and cross-reference the part number.

Universal vs OEM Igniters

Universal igniters fit multiple brands and models. They cost $15–$45 and work well in most applications.

OEM igniters are made for your exact model. They cost $35–$100 but eliminate any fit guesswork.

Rule of thumb:

If your furnace is under 10 years old and still under warranty — use OEM to avoid voiding the warranty
If your furnace is 10+ years old — universal igniters work fine and cost half as much

Best Igniters by Brand

Carrier, Bryant, Payne

OEM part: Carrier HH18HA499 / HKSG01WC001 Best universal fit: Robertshaw 41-404 silicon nitride igniter

Fits Carrier, Bryant, Payne, Comfortmaker furnaces 2000–present
Silicon nitride construction — longer life than SiC
Typical price: $25–$40

Goodman, Amana, Daikin

OEM part: Goodman 0130F00008S Best universal fit: Supplying Demand B1401015S igniter

Fits Goodman, Amana, Daikin manufactured furnaces 2005–present
Replaces SiC units with upgraded silicon nitride
Typical price: $18–$35

Trane, American Standard

OEM part: Trane IGN00011 / American Standard IGN00011 Best universal fit: White-Rodgers / Emerson Q3400A1024 silicon carbide igniter

Fits Trane, American Standard, RunTru furnaces
Older Trane models use silicon carbide — verify by resistance check
Typical price: $30–$55

Lennox

OEM part: Lennox 13F37 / SureLight igniter Best replacement: Lennox 13F37 OEM igniter (OEM recommended for Lennox — universal fit can be tricky on some models)

Lennox SureLight furnaces use a proprietary silicon nitride design
Typical price: $35–$65

Rheem, Ruud, Weather King

OEM part: Rheem 62-24140-04 / SP20166B Best universal fit: Supplying Demand SP20166B igniter

Fits most Rheem, Ruud, WeatherKing, and Richmond furnaces 2000–present
Typical price: $20–$40

York, Coleman, Luxaire (Bosch)

OEM part: York 025-32625-000 Best fit: Emerson/White Rodgers 767A-369 igniter

Fits York, Coleman, Luxaire, Champion manufactured furnaces
Silicon nitride flat style
Typical price: $22–$38

Nordyne (Frigidaire, Gibson, Westinghouse, Tappan furnaces)

OEM part: Nordyne 624631 Best fit: Nordyne 624631 igniter or Ceramic Igniter 624631B

Fits Frigidaire, Gibson, Westinghouse, Tappan, and Nordyne-manufactured furnaces
Typical price: $20–$40

How to Replace a Furnace Igniter

Time: 10–20 minutes Tools: Screwdriver (usually 5/16” or 1/4” hex), needle-nose pliers optional Skill level: Basic DIY — no special certification required

Steps

Turn off power to the furnace — flip the furnace switch (usually on the wall near the unit) or kill the breaker. Do not skip this.
Turn off gas — turn the gas shutoff valve (90° from the pipe = off).
Remove the furnace door(s) — lower panel first on most models, then upper.
Locate the igniter — it’s in the burner compartment, near the burners. Follows the gas manifold. You’ll see a ceramic element connected by two wires.
Photograph the wire routing — before you disconnect anything, take a photo. This is your reference for reassembly.
Disconnect the igniter harness — unplug the 2-wire connector. If there’s no quick-connect, note which wires go where (polarity doesn’t matter for igniters — they’re not polarized).
Remove the igniter — usually held by one or two screws (5/16” hex driver). Slide it out carefully. Silicon carbide igniters are brittle — don’t touch the element.
Install the new igniter — slide in the new unit, align to the mounting bracket, and secure the screw(s). Do not overtighten — you’ll crack a silicon carbide igniter.
⚠️ Important: Do not touch the igniter element with bare hands. Skin oils reduce igniter life. Handle by the ceramic bracket only.
Reconnect the harness — plug back in, route the wires away from the burner flame path.
Reinstall furnace doors — upper panel first, then lower. The door switch must engage or the furnace won’t run.
Restore gas and power — turn gas back on first, then flip the power switch.
Test cycle — set thermostat 5° above room temp. Watch through the sight glass. You should see the igniter glow orange/red within 30 seconds, followed by the burners lighting within another 5–10 seconds.

How Long Do Igniters Last?

Silicon nitride: 5–10 years typical
Silicon carbide: 3–5 years typical
What kills them early: Touching the element (oil from skin), voltage spikes, cracking from vibration

If you’re replacing an igniter for the second time in 3 years, check your furnace’s voltage supply. A voltage spike above 125V will shorten igniter life significantly.

Best Furnace Igniter Replacement — Universal and Brand-Specific Picks