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OEM Carrier Flame Sensor LH33WZ009A for LC350HE400812
OEM Carrier Flame Sensor LH33WZ009A for LC350HE400812
OEM Carrier Flame Sensor LH33WZ009A for LC350HE400812
OEM Carrier Flame Sensor LH33WZ009A for LC350HE400812
OEM Carrier Flame Sensor LH33WZ009A for LC350HE400812
Carrier

OEM Carrier Flame Sensor LH33WZ009A for LC350HE400812

SKU: CARRIE-LC350HE400812-FLAME_SENSOR-LH33WZ009A Brand: Carrier
✓ Guaranteed to fit LC350HE400812 — or your money back. Terms

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Texas CMBL #19328542014
SAM.gov Registered
Govt POs Accepted

OEM Carrier Flame Sensor LH33WZ009A for Model LC350HE400812

This is the genuine OEM replacement flame sensor (part number LH33WZ009A) for the Carrier LC350HE400812 furnace. The flame sensor is a critical safety component — a small metal rod that detects the presence of a burner flame by passing a small electrical current through it. When the control board cannot confirm flame, it shuts off the gas valve within 5 to 8 seconds as a safety precaution. A dirty, cracked, or failed flame sensor is one of the most common causes of furnace short-cycling: the burner lights, runs briefly, then shuts down — often repeating in lockout after 3 attempts.

  • Specs: OEM part number LH33WZ009A | Factory-matched rod length and bend angle | 1/4" female quick-connect terminal | Stainless steel sensing rod with ceramic insulator
  • OEM vs Generic: OEM sensors are precision-matched to the control board's microamp threshold for the LC350HE400812. Generic sensors often fall outside acceptable microamp range, causing nuisance shutdowns even after installation — choose OEM for a confirmed fix.
  • Install difficulty: 2/5 — Turn off power and gas before servicing. Tools needed: 1/4" hex driver or nut driver, needle-nose pliers. Disconnect the wire harness, remove the single mounting screw, and swap the sensor. Lightly sand the rod only if reusing; always replace if cracked or heavily oxidized.
  • Warranty: 1-year OEM factory warranty. In stock and ships same business day from our warehouse.

Compatibility: Designed specifically for the Carrier LC350HE400812 furnace. Always verify your existing part number on the sensor body or wiring harness label before ordering to confirm fitment. If you're unsure, our team is happy to verify compatibility before you buy — same-day shipping on all in-stock 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 $99
  • 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 info@nationalhvacparts.com to initiate a return
  • Refunds processed within 5-7 business days

Frequently Asked Questions

Does this Flame Sensor fit my Carrier LC350HE400812?
Yes. This is the factory-specified OEM flame sensor for the Carrier LC350HE400812. 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 LC350HE400812?
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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Mike Rivera
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