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OEM Carrier Flame Sensor for PY3PNA048090AA — 48GS400192
OEM Carrier Flame Sensor for PY3PNA048090AA — 48GS400192
OEM Carrier Flame Sensor for PY3PNA048090AA — 48GS400192
OEM Carrier Flame Sensor for PY3PNA048090AA — 48GS400192
Carrier

OEM Carrier Flame Sensor for PY3PNA048090AA — 48GS400192

SKU: CARRIE-PY3PNA048090AA-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 PY3PNA048090AA

This is the factory OEM flame sensor (part number 48GS400192) for the Carrier PY3PNA048090AA packaged gas/electric unit. The flame sensor — also called a flame rod — is a safety component mounted in the burner assembly. It detects the presence of a live flame by passing a small microamp current through the flame to ground. When it fails, is coated with oxidation, or reads out of spec, the furnace or heating section will light briefly and then shut off within 5 to 8 seconds, triggering a safety lockout. Replacing the flame sensor with a genuine OEM part restores accurate flame detection and prevents nuisance lockouts.

  • Part Number: 48GS400192 | OEM-direct replacement | Factory-matched microamp sensitivity and rod geometry
  • OEM vs Generic: OEM flame sensors are manufactured to exact factory current-draw tolerances. Aftermarket sensors often have inconsistent coatings and rod lengths that cause erratic readings, repeated lockouts, or premature failure.
  • Install Difficulty: 2/5 — Shut off gas supply and 24V control power before servicing. Tools needed: 1/4" hex driver or nut driver, fine steel wool or emery cloth (to clean mounting bracket), multimeter with microamp setting to verify 1–10 µA flame signal after installation.
  • Warranty: 1-year OEM factory warranty. In stock and ships same business day from our warehouse.

Compatibility: Designed as a direct OEM replacement for the Carrier PY3PNA048090AA packaged unit. Before ordering, verify the part number on your existing sensor or the unit's parts breakdown. The PY3PNA048090AA is a 4-ton, 90,000 BTU packaged gas/electric system. Questions about fitment? Our HVAC parts specialists verify compatibility before you order — reach out via chat or phone.

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 PY3PNA048090AA — 48GS400192?
Yes. This is the factory-specified OEM flame sensor for the Carrier PY3PNA048090AA — 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 PY3PNA048090AA — 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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