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OEM Carrier Flame Sensor LH33ZS003 for Model GB3AAV036070ABJA
Carrier

OEM Carrier Flame Sensor LH33ZS003 for Model GB3AAV036070ABJA

SKU: carrier-undefined-gb3aav036070abja 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 GB3AAV036070ABJA

This genuine OEM Carrier LH33ZS003 flame sensor confirms that the burners in your GB3AAV036070ABJA furnace have actually ignited, a vital safety step that tells the control board to keep the gas valve open. The sensor generates a small microamp current through the flame; when it becomes coated with oxide or cracks, the board no longer detects flame and shuts the gas off within seconds, causing the classic short-cycle: the furnace lights, runs briefly, then drops out and tries again. This factory rod is built to the exact length and mounting of your Carrier furnace for a reliable signal. Replacement is an easy DIY job of about 15 minutes: cut power, remove the single mounting screw, unplug the lead, and install the new sensor in the same position. Using the OEM sensor avoids the weak-signal and fitment issues common with universal rods. In stock and ships same-day on orders before 3PM CST. Stop the short cycling and restore steady heat with the correct Carrier flame sensor.

Compatibility

This part is compatible with Carrier model GB3AAV036070ABJA.

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 GB3AAV036070ABJA?
Yes. This is the factory-specified OEM flame_sensor for the Carrier Model GB3AAV036070ABJA. 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 GB3AAV036070ABJA?
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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