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OEM Carrier Flame Sensor for Model GB1AAV042091ACJA Gas Furnace
Carrier

OEM Carrier Flame Sensor for Model GB1AAV042091ACJA Gas Furnace

SKU: carrier-undefined-gb1aav042091acja Brand: Carrier
$24.95

Order before 3PM CST — ships same day.
Standard delivery 2-5 business days. Express options at checkout.

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OEM Carrier Flame Sensor for Model GB1AAV042091ACJA Gas Furnace

Keep your Carrier GB1AAV042091ACJA furnace heating safely with this genuine OEM flame sensor. The flame sensor verifies that the burner has actually ignited by detecting the flame's micro-amp signal; if it doesn't sense flame within seconds, the control board closes the gas valve to prevent a dangerous gas buildup. A dirty, corroded, or cracked flame sensor is the leading cause of furnaces that light and then shut down after a few seconds (short-cycling on flame failure). This factory-spec rod matches the exact length, bend, mounting bracket, and terminal of the original on the GB1AAV042091ACJA for a perfect fit and accurate flame rectification. Installation is easy and beginner-friendly: cut power, remove one mounting screw, unplug the wire, and swap in the new sensor in about 10-15 minutes. No calibration required. Replacing a worn flame sensor restores reliable startups and eliminates frustrating no-heat lockouts. Engineered specifically for your Carrier model, not a universal compromise. Order before 3PM CST and your flame sensor ships same-day.

Compatibility

This part is compatible with Carrier model GB1AAV042091ACJA.

Shipping

Same-day shipping before 3 PM CST. 30-day returns on uninstalled 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 $75
  • 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 support@nationalhvacparts.com to initiate a return
  • Refunds processed within 5-7 business days

Frequently Asked Questions

Does this flame_sensor fit my Carrier Model GB1AAV042091ACJA Gas Furnace?
Yes. This is the factory-specified OEM flame_sensor for the Carrier Model GB1AAV042091ACJA Gas Furnace. 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 Model GB1AAV042091ACJA Gas Furnace?
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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