Same-day shipping on orders before 3PM CST · 15,000+ OEM Parts In Stock · Carrier · Bryant · ICP · Heil · Tempstar
Track Order | 1-800-NHP-HVAC | Trade Accounts

Menu

Home Shop All Account Cart
Home / OEM Carrier Furnace Flame Sensor for ...
OEM Carrier Furnace Flame Sensor for Model GB1AAV042091AGJA
Carrier

OEM Carrier Furnace Flame Sensor for Model GB1AAV042091AGJA

SKU: carrier-undefined-gb1aav042091agja Brand: Carrier
$27.95

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

OEM Guaranteed

Same-Day Ship

30-Day Returns

Secure Checkout

OEM Carrier Furnace Flame Sensor for Model GB1AAV042091AGJA

This genuine Carrier flame sensor is the safety rod that confirms a flame is actually present after ignition on your GB1AAV042091AGJA gas furnace. It uses flame rectification to signal the control board to keep the gas valve open; when the sensor is dirty, corroded, or cracked, the furnace lights then shuts down within seconds, the classic short-cycle no-heat complaint. This OEM sensor is built to the exact length, bend, and mounting pattern of the GB1AAV042091AGJA, so it sits correctly in the flame path for a strong, stable signal. Installation is easy and takes about 15 minutes: cut power, remove the single mounting screw, unplug the lead, and install the new sensor. While you're there, inspect the porcelain insulator for hairline cracks. Manufactured to factory specifications for dependable flame detection. Order before 3PM CST and this flame sensor ships same-day, restoring safe, continuous heat to your Carrier furnace without a costly emergency service call.

Compatibility

This part is compatible with Carrier model GB1AAV042091AGJA.

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 GB1AAV042091AGJA?
Yes. This is the factory-specified OEM flame_sensor for the Carrier Model GB1AAV042091AGJA. 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 GB1AAV042091AGJA?
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.
Home Shop Search Account Cart