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OEM Carrier Flame Sensor LH680534 for Model GB1AAV042075AAJA
Carrier

OEM Carrier Flame Sensor LH680534 for Model GB1AAV042075AAJA

SKU: carrier-undefined-gb1aav042075aaja Brand: Carrier
$18.95

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 LH680534 for Model GB1AAV042075AAJA

This genuine OEM Carrier flame sensor (LH680534) detects the presence of a burner flame and signals the furnace control board to keep the gas valve open, shutting the system down safely if no flame is sensed. A dirty or cracked flame sensor is the most common cause of short-cycling and ignition lockout on the Carrier GB1AAV042075AAJA furnace. This is a direct factory-fit replacement engineered to the exact resistance and mounting specs of your unit, ensuring reliable rectification and flame proving. Installation is an easy DIY job for most homeowners: power off the furnace, remove the burner-compartment screw, unclip the wire, and swap the sensor in under 15 minutes — no special tools required. Always handle the rod by the ceramic base to avoid contamination. Restore consistent, safe heating and eliminate nuisance lockouts with the correct OEM part. In stock and ships same-day when your order is placed before 3PM CST, so you can get your furnace running fast.

Compatibility

This part is compatible with Carrier model GB1AAV042075AAJA.

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 GB1AAV042075AAJA?
Yes. This is the factory-specified OEM flame_sensor for the Carrier Model GB1AAV042075AAJA. 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 GB1AAV042075AAJA?
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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