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OEM Carrier Hot Surface Igniter for PY4GNAA42090AA — 48VL400002
Carrier

OEM Carrier Hot Surface Igniter for PY4GNAA42090AA — 48VL400002

SKU: CARRIE-PY4GNAA42090AA-IGNITER-48VL400002 Brand: Carrier
✓ Guaranteed to fit 48VL400002 — or your money back. Terms

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Texas CMBL #19328542014
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Govt POs Accepted

OEM Carrier Hot Surface Igniter (48VL400002) for Model PY4GNAA42090AA

This is the factory OEM spark electrode igniter (part number 48VL400002) specified for the Carrier PY4GNAA42090AA packaged gas/electric unit. The hot surface igniter is the critical first step in every heating cycle — the control board energizes the igniter to reach glow temperature, proving ignition before the gas valve opens. When the igniter cracks, weakens, or fails to reach operating temperature, the board detects the fault and locks out the unit, leaving you with no heat. Common symptoms include repeated ignition attempts with no flame, a visible crack in the igniter element, or a fault code indicating ignition failure.

  • Specs: OEM spark electrode igniter | Part No. 48VL400002 | Silicon nitride element | Factory-matched electrical connector and mounting bracket geometry for direct drop-in fit
  • OEM vs Generic: This OEM igniter meets exact Carrier factory resistance and heat-up time specifications. Aftermarket units can vary significantly in ramp-up temperature, causing nuisance lockouts or premature failure — OEM is always the recommended choice for reliability.
  • Install Difficulty: 3/5 — Turn off gas supply and 24V control power before servicing. Tools needed: 1/4" and 5/16" nut drivers, needle-nose pliers. Never touch the igniter element with bare hands — skin oils cause hot spots and premature cracking. Use gloves or handle by the connector/bracket only.
  • Warranty: 1-year OEM factory warranty against defects. In-stock and ships same business day from our warehouse.

Compatibility: Direct OEM replacement for Carrier model PY4GNAA42090AA packaged gas/electric unit. Always verify your existing part number printed on the igniter body or unit wiring diagram before ordering. Our fitment team is available to confirm compatibility before you purchase — order with confidence and get back to heat fast.

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 $99
  • 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

Frequently Asked Questions

Does this Igniter fit my Carrier PY4GNAA42090AA — 48VL400002?
Yes. This is the factory-specified OEM igniter for the Carrier PY4GNAA42090AA — 48VL400002. 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 Carrier PY4GNAA42090AA — 48VL400002?
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 Carrier 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 Carrier 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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