What igniter fits my Goodman furnace?

The correct replacement for Goodman model WFM18070S3AXCB — 20165703S 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 Goodman equipment which lists the model number WFM18070S3AXCB — 20165703S.

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.

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Goodman

OEM Goodman Hot Surface Ignitor for WFM18070S3AXCB — 20165703S

Name: OEM Goodman Hot Surface Ignitor for WFM18070S3AXCB — 20165703S
Brand: Goodman
SKU: GOODMAN-14057
Price: 47.95 USD
Availability: InStock

SKU: GOODMAN-14057 Brand: Goodman

$47.95 $62.95

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The Goodman 20165703S is a genuine OEM hot surface ignitor (HSI) designed for the WFM18070S3AXCB gas furnace and other compatible Goodman and Amana models. When the control board calls for heat, this ignitor glows red-hot to light the main burners. A cracked or burned-out ignitor is one of the most common causes of a no-heat furnace, and replacing it restores reliable startup.

Specifications

Part Number: 20165703S
Type: Hot surface ignitor (HSI)
Element: High-temperature ignition element
Function: Direct burner ignition on call for heat
Brand: Goodman / Amana OEM
Fits: WFM18070S3AXCB and compatible furnaces

OEM vs. Generic

The OEM ignitor is matched to the furnace's ignition timing and resistance range, so it reaches the correct temperature within the board's trial-for-ignition window. Generic replacements are cheaper but vary in resistance and durability, sometimes causing failed lights or premature burnout. For dependable ignition, OEM is recommended.

Installation Difficulty

Moderate (2/5). Disconnect power, unplug the ignitor connector, and remove one or two mounting screws. Handle only by the ceramic base — skin oils or contact with the fragile element shorten its life. Confirm alignment over the burner before restoring power.

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

OEM Goodman Hot Surface Ignitor ...

$47.95

Frequently Asked Questions

Does this Hot Surface Igniter fit my Goodman WFM18070S3AXCB — 20165703S?

Yes. This is the factory-specified OEM hot surface igniter for the Goodman WFM18070S3AXCB — 20165703S. 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 hot surface igniter on my Goodman WFM18070S3AXCB — 20165703S?

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 hot surface igniter compatible with Bryant or Payne too?

Many Goodman 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 Goodman hot surface 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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