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OEM Carrier Flame Sensor LH33ZS003 for Model LC348TM402289 Furnace
Carrier

OEM Carrier Flame Sensor LH33ZS003 for Model LC348TM402289 Furnace

SKU: carrier-undefined-lc348tm402289 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 LH33ZS003 for Model LC348TM402289 Furnace

This OEM Carrier flame sensor (part LH33ZS003) proves burner flame in your Carrier LC348TM402289 furnace, sending a microamp signal to the control board that confirms ignition. If the rod is dirty, cracked, or weak, the board cuts gas as a safety response — producing short-cycling, intermittent no-heat, and repeated lockouts. Replacing this sensor is the fastest fix for a furnace that lights then drops out after a few seconds. This direct-fit rod is built to exact Carrier specifications for the LC348TM402289, ensuring correct length, mounting position, and signal strength for reliable flame proving. Installation is one of the simplest furnace repairs — about 15 minutes: turn off power, remove a single screw, disconnect the lead, and install the new sensor. No tools beyond a nut driver and no recalibration needed. Most homeowners manage it easily; technicians treat it as routine maintenance. Genuine OEM quality means dependable operation all season. In stock and ships same-day on orders placed before 3PM CST so you stay warm.

Compatibility

This part is compatible with Carrier model LC348TM402289.

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 LC348TM402289 Furnace?
Yes. This is the factory-specified OEM flame_sensor for the Carrier Model LC348TM402289 Furnace. 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 LC348TM402289 Furnace?
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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