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OEM Carrier Flame Sensor for PY2PNB030040AA — 48GS400192
OEM Carrier Flame Sensor for PY2PNB030040AA — 48GS400192
OEM Carrier Flame Sensor for PY2PNB030040AA — 48GS400192
OEM Carrier Flame Sensor for PY2PNB030040AA — 48GS400192
Carrier

OEM Carrier Flame Sensor for PY2PNB030040AA — 48GS400192

SKU: CARRIE-PY2PNB030040AA-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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OEM Carrier Flame Sensor 48GS400192 for Model PY2PNB030040AA

This is the factory OEM replacement flame sensor (part number 48GS400192) for the Carrier PY2PNB030040AA packaged unit. The flame sensor — also called a flame rod — is a safety component mounted in the burner assembly that detects the presence of a sustained flame during the ignition sequence. It passes a small DC microamp current through the burner flame to signal the control board that combustion is confirmed. When the sensor becomes coated with oxidation or carbon buildup, or fails entirely, the control board cannot verify a flame and will shut off the gas valve within 5–8 seconds of ignition — causing the frustrating "starts then locks out" symptom most technicians recognize immediately.

  • Specs: OEM part number 48GS400192 | Factory-matched rod length and mounting bracket geometry | Compatible microamp signal range per factory control board specification | Stainless steel sensing rod
  • OEM vs Generic: This is a genuine OEM Carrier part. OEM flame sensors ensure the correct rod length, bend angle, and signal output. Generic sensors with incorrect geometry can result in intermittent nuisance lockouts or flame-proving failures even when a good flame is present.
  • Install Difficulty: 2/5 — A straightforward single-screw replacement. Shut off gas and power before servicing. Tools needed: 1/4" hex driver or nut driver, lightly abrasive pad (to clean rod if reusing), and a multimeter for microamp verification. Always confirm gas is off before accessing the burner compartment.
  • Warranty: 1-year OEM factory warranty against defects. Ships same business day from our warehouse when ordered before 3 PM local time.

Compatibility: This part is factory-specified for the Carrier PY2PNB030040AA packaged unit. Always cross-reference the OEM part number 48GS400192 on your existing sensor or equipment data plate before ordering to confirm fitment. Need help verifying compatibility? Our HVAC parts specialists are available to confirm the correct part before you order — so you get it right the first time.

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 PY2PNB030040AA — 48GS400192?
Yes. This is the factory-specified OEM flame sensor for the Carrier PY2PNB030040AA — 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 PY2PNB030040AA — 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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