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OEM Carrier Flame Sensor 90° w/ Bracket for PY3GNA024040AB
OEM Carrier Flame Sensor 90° w/ Bracket for PY3GNA024040AB
OEM Carrier Flame Sensor 90° w/ Bracket for PY3GNA024040AB
OEM Carrier Flame Sensor 90° w/ Bracket for PY3GNA024040AB
Carrier

OEM Carrier Flame Sensor 90° w/ Bracket for PY3GNA024040AB

SKU: CARRIE-PY3GNA024040AB-FLAME_SENSOR-48GS400192 Brand: Carrier
✓ Guaranteed to fit PY3GNA024040AB — or your money back. Terms

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Texas CMBL #19328542014
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Govt POs Accepted

OEM Carrier Flame Sensor 48GS400192 for Model PY3GNA024040AB

This is the genuine OEM factory-replacement flame sensor (part number 48GS400192) for the Carrier PY3GNA024040AB gas furnace. The flame sensor is a critical safety component: after ignition, it uses ionization/rectification technology to verify that a burner flame is actively present. If the sensor is fouled, corroded, or failed, the furnace control board will not detect the flame signal and will shut off the gas valve within 5–8 seconds of ignition — resulting in repeated short-cycle lockouts and a cold home. Replacing this sensor is one of the most common and cost-effective furnace repairs available.

  • Part Specs: OEM Carrier part #48GS400192 | 90-degree mounting angle | Includes mounting bracket | Approx. dimensions: 4.9" H × 1.75" W × 1.6" rod length | Genuine OEM replacement
  • OEM vs Generic: This is a factory-matched OEM part built to exact Carrier specifications. Generic sensors often use lower-grade rod alloys that oxidize faster, shortening service life and causing nuisance lockouts sooner than an OEM unit.
  • Install Difficulty: 2/5 — A straightforward repair for DIYers with basic tools. You will need a 1/4" hex driver, needle-nose pliers, and fine steel wool or emery cloth to clean the burner rod port. Always shut off power and gas before servicing. Disconnect the single lead wire, remove the one mounting screw, swap the sensor, and reconnect.
  • Warranty & Shipping: Backed by a 1-year OEM manufacturer warranty against defects. In stock and ships same business day from our warehouse.

Compatibility: Designed for the Carrier PY3GNA024040AB gas furnace. Verify your existing part number on the sensor body or your unit's wiring diagram before ordering. If you're unsure of fitment, our HVAC parts specialists can confirm compatibility before you buy — contact us today and get your heat back 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 Flame Sensor fit my Carrier PY3GNA024040AB?
Yes. This is the factory-specified OEM flame sensor for the Carrier PY3GNA024040AB. 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 flame sensor on my Carrier PY3GNA024040AB?
Difficulty: Easy (10–15 min)
Step 1: Turn off power/gas. Step 2: Open furnace panel. Step 3: Locate flame sensor rod near burners. Step 4: Remove single mounting screw. Step 5: Clean rod with 400-grit sandpaper until shiny (or replace). Step 6: Reinstall and tighten. Most common furnace repair — saves $150–$300 vs technician.
My furnace lights then shuts off after a few seconds. Why?
Furnace lights then shuts off after 3–10 seconds = dirty flame sensor in 90% of cases. The sensor can’t detect flame through oxidation buildup. Fix: clean with 400-grit sandpaper (free, 15 min). If cleaning doesn’t work, replace the sensor.
Is this flame sensor 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 flame sensor?
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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Mike Rivera
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