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OEM Carrier Flame Sensor LC348TM402770 for Model LC348TM402770
Carrier

OEM Carrier Flame Sensor LC348TM402770 for Model LC348TM402770

SKU: carrier-undefined-lc348tm402770 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 LC348TM402770 for Model LC348TM402770

This OEM Carrier flame sensor is the genuine flame-rectification rod for Carrier model LC348TM402770 gas furnaces, confirming a lit burner so the control board keeps the gas valve open through the heating cycle. As the sensing element collects oxide and carbon, its signal weakens until the furnace ignites and then shuts off within seconds—the short-cycling that leaves your home cold. This exact-fit factory replacement restores a clean, dependable microamp reading and eliminates nuisance lockouts. Crafted to Carrier's precise rod length and heat-resistant alloy, it stays accurate far longer than generic sensors prone to corrosion. Installation is an easy, beginner-friendly task: turn off power and gas, remove the single mounting screw, disconnect the wire, and fit the new sensor without touching the rod. Pair it with a fresh igniter for a complete ignition-system refresh. Swapping a fouled flame sensor is the fastest, most affordable fix for intermittent no-heat issues. In stock and ready to ship same-day on all orders placed before 3PM CST, returning reliable heat quickly.

Compatibility

This part is compatible with Carrier model LC348TM402770.

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 LC348TM402770?
Yes. This is the factory-specified OEM flame_sensor for the Carrier Model LC348TM402770. 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 LC348TM402770?
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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