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OEM Carrier Flame Sensor 90° for PY3PNA042090NA — 48GS400192
OEM Carrier Flame Sensor 90° for PY3PNA042090NA — 48GS400192
OEM Carrier Flame Sensor 90° for PY3PNA042090NA — 48GS400192
OEM Carrier Flame Sensor 90° for PY3PNA042090NA — 48GS400192
Carrier

OEM Carrier Flame Sensor 90° for PY3PNA042090NA — 48GS400192

SKU: CARRIE-PY3PNA042090NA-FLAME_SENSOR-48GS400192 Brand: Carrier
✓ Guaranteed to fit 48GS400192 — 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 PY3PNA042090NA

This is the genuine OEM Carrier flame sensor, part number 48GS400192, factory-specified for the Carrier PY3PNA042090NA gas furnace. The flame sensor is a critical safety component: after the igniter lights the burner, the sensor's rod detects the flame via electrical rectification and sends a confirming signal to the control board. If the board doesn't receive that signal within a few seconds, it shuts down the gas valve as a safety precaution. A failed or contaminated flame sensor is one of the most common causes of a furnace that starts, runs for 5–8 seconds, then locks out — repeating this cycle until it faults.

  • Specs: 90-degree mounting angle | Flame rod with integrated mounting bracket | OEM dimensions ~4.9" L × 1.75" H | Direct factory-matched replacement for part # 48GS400192
  • OEM vs Generic: This is a genuine Carrier OEM part, built to exact factory tolerances. Generic sensors may have inconsistent rod coatings or bracket angles that cause intermittent detection errors, leading to nuisance lockouts even after installation.
  • Install difficulty: 2/5 — Turn off gas and power before beginning. Tools needed: 1/4" hex driver, needle-nose pliers, and fine steel wool or emery cloth (to clean rod if reusing). Disconnect the single wire lead, remove the mounting screw, swap the sensor, and reconnect. Tip: lightly sand the rod with steel wool if the burner lights but the sensor still faults before replacing.
  • Warranty: Backed by a 1-year OEM manufacturer warranty against defects. Ships same business day from our warehouse.

Compatibility: Designed for the Carrier PY3PNA042090NA gas furnace. Always verify your existing part number on the sensor body or your unit's wiring diagram before ordering. Our team is available to confirm fitment — reach out before you buy. Order today and your part ships the same business day.

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 PY3PNA042090NA — 48GS400192?
Yes. This is the factory-specified OEM flame sensor for the Carrier PY3PNA042090NA — 48GS400192. 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 PY3PNA042090NA — 48GS400192?
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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