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OEM Carrier Flame Sensor for PY3PNA042090AB — 48GS400192
OEM Carrier Flame Sensor for PY3PNA042090AB — 48GS400192
OEM Carrier Flame Sensor for PY3PNA042090AB — 48GS400192
OEM Carrier Flame Sensor for PY3PNA042090AB — 48GS400192
Carrier

OEM Carrier Flame Sensor for PY3PNA042090AB — 48GS400192

SKU: CARRIE-PY3PNA042090AB-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 PY3PNA042090AB

This is the factory OEM flame sensor for the Carrier PY3PNA042090AB packaged gas/electric unit. The flame sensor — also called a flame rod — is a safety component mounted in the burner assembly that detects the presence of a live flame after ignition. It sends a small microamp signal to the control board confirming combustion is active. When the sensor fails or becomes coated with oxidation, the board cannot confirm flame presence and shuts off the gas valve within 5–8 seconds as a safety lockout — leaving you with a no-heat call that repeats on every cycle.

  • Specs: OEM Part Number 48GS400192 | Flame rod / flame sensor type | Factory-matched microamp signal output | Direct drop-in fit for Carrier PY3PNA042090AB gas section
  • OEM vs Generic: This is the genuine OEM Carrier part, manufactured to exact factory specification. Generic flame sensors may have incorrect rod length, angle, or coating — leading to nuisance lockouts or premature failure even after installation.
  • Install difficulty: 2/5 — Turn off gas and 24V control power before servicing. Tools needed: 1/4" hex driver or nut driver, fine steel wool or emery cloth (to clean rod if reusing), multimeter (to verify microamp draw post-install). Always confirm microamp reading is within the control board's acceptable range after replacement.
  • Warranty: 1-year OEM factory warranty. In-stock and ships same business day from our warehouse.

Compatibility: Engineered specifically for the Carrier PY3PNA042090AB packaged gas/electric unit (3.5-ton cooling, 90,000 BTU gas heat). Verify OEM part number 48GS400192 against your unit's data plate or wiring diagram before ordering. Have questions about fitment? Our HVAC parts specialists verify compatibility before you buy — contact us before placing your order.

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 PY3PNA042090AB — 48GS400192?
Yes. This is the factory-specified OEM flame sensor for the Carrier PY3PNA042090AB — 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 PY3PNA042090AB — 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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