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OEM Carrier Flame Sensor LC348TM402771 for Model LC348TM402771
Carrier

OEM Carrier Flame Sensor LC348TM402771 for Model LC348TM402771

SKU: carrier-undefined-lc348tm402771 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 LC348TM402771 for Model LC348TM402771

This OEM Carrier flame sensor is the genuine flame-rectification rod for Carrier model LC348TM402771 gas furnaces, verifying burner flame so the control keeps the gas valve energized. Over time the sensing element accumulates oxide and carbon, weakening its microamp signal until the furnace lights briefly then locks out—classic short-cycling that leaves you without reliable heat. This exact-fit factory replacement restores a strong, stable signal and stops nuisance shutdowns for good. Made to Carrier's precise rod geometry and high-temperature alloy, it resists corrosion and reads consistently far longer than generic substitutes. Installation is an easy, beginner-level repair: shut off power and gas, remove the single screw, disconnect the lead, and mount the new sensor without touching the metal rod with bare fingers. Combine with a fresh igniter for a full ignition-system tune-up. Replacing a dirty flame sensor is the quickest, lowest-cost cure for intermittent no-heat faults. In stock and ready to ship same-day on every order placed before 3PM CST, so warmth returns without delay.

Compatibility

This part is compatible with Carrier model LC348TM402771.

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 LC348TM402771?
Yes. This is the factory-specified OEM flame_sensor for the Carrier Model LC348TM402771. 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 LC348TM402771?
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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