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OEM Carrier Flame Sensor 90° for PY3PPA042090AA — 48GS400192
OEM Carrier Flame Sensor 90° for PY3PPA042090AA — 48GS400192
OEM Carrier Flame Sensor 90° for PY3PPA042090AA — 48GS400192
OEM Carrier Flame Sensor 90° for PY3PPA042090AA — 48GS400192
Carrier

OEM Carrier Flame Sensor 90° for PY3PPA042090AA — 48GS400192

SKU: CARRIE-PY3PPA042090AA-FLAME_SENSOR-48GS400192 Brand: Carrier
✓ Guaranteed to fit 48GS400192 — or your money back. Terms

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Texas CMBL #19328542014
SAM.gov Registered
Govt POs Accepted

OEM Carrier Flame Sensor (48GS400192) for Model PY3PPA042090AA

This OEM flame sensor is the factory-specified replacement for the Carrier PY3PPA042090AA gas furnace. The flame sensor — also called a flame rod — uses ionic rectification to detect the presence of a burner flame during each heating cycle. When the sensor rod becomes coated with oxidation or carbon buildup, its microamp signal drops below the control board's threshold, causing the furnace to light briefly and then shut down after just 5–8 seconds. Left unaddressed, this triggers a hard lockout and a no-heat call. Replacing the sensor with the correct OEM part restores reliable flame detection and prevents nuisance shutdowns.

  • Specs: OEM Part # 48GS400192 | 90° angle mounting bracket | Flame rod with insulated lead wire | Factory-matched microamp output | Dimensions approx. 4.9" L × 1.75" H × 1.6" W
  • OEM vs Generic: OEM sensors are built to Carrier's exact rod alloy and insulation spec, ensuring consistent microamp output across temperature cycles. Generic sensors may produce marginal signals that cause intermittent lockouts — especially as they age.
  • Install Difficulty: 2/5 — Straightforward single-screw mount with a push-on wire connector. Tools needed: 1/4" nut driver or flathead screwdriver, fine steel wool or emery cloth (for rod cleaning if reusing), and a multimeter to verify microamp draw after installation. Always shut off power and gas before servicing.
  • Warranty: Backed by a 1-year OEM manufacturer warranty. In stock and ships same business day from our warehouse.

Compatibility: Engineered for the Carrier PY3PPA042090AA gas furnace. Always verify the OEM part number on your existing sensor or unit data plate before ordering to confirm fitment. Our parts specialists are standing by to verify compatibility — no guesswork required. Order today and receive same-day shipping on all in-stock parts.

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 PY3PPA042090AA — 48GS400192?
Yes. This is the factory-specified OEM flame sensor for the Carrier PY3PPA042090AA — 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 PY3PPA042090AA — 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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