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 Flame Sensor LH680534 for...
OEM Carrier Flame Sensor LH680534 for Model FPAA100D34CN
Carrier

OEM Carrier Flame Sensor LH680534 for Model FPAA100D34CN

SKU: carrier-undefined-fpaa100d34cn Brand: Carrier
$24.95

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 Flame Sensor LH680534 for Model FPAA100D34CN

This genuine OEM Carrier flame sensor (LH680534) is the safety component that confirms your burner has ignited on the FPAA100D34CN furnace/fan coil. The sensor generates a small flame-rectification current the control board reads to keep the gas valve open; a dirty, corroded, or cracked flame sensor causes short cycling, lockouts, and a furnace that lights then shuts off after a few seconds. Built to exact Carrier specifications, this rod drops directly into the FPAA100D34CN burner assembly for a precise, reliable fit. Replacement is one of the easiest furnace repairs—remove a single screw, unplug the wire lead, and install the new sensor in about 15 minutes. Restoring a clean OEM flame sensor ends nuisance lockouts and returns dependable heating. Genuine Carrier construction ensures accurate flame detection and long life. Order before 3PM CST for same-day shipping and get your heat back quickly. In stock and ready to ship today.

Compatibility

This part is compatible with Carrier model FPAA100D34CN.

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 FPAA100D34CN?
Yes. This is the factory-specified OEM flame_sensor for the Carrier Model FPAA100D34CN. 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 FPAA100D34CN?
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