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OEM Carrier Flame Sensor LH33WZ520 for PG9MTAV60100ABSS
Carrier

OEM Carrier Flame Sensor LH33WZ520 for PG9MTAV60100ABSS

SKU: CARRIE-PG9MTAV60100ABSS-FLAME_SENSOR-LH33WZ520 Brand: Carrier
✓ Guaranteed to fit PG9MTAV60100ABSS — or your money back. Terms

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Texas CMBL #19328542014
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Govt POs Accepted

OEM Carrier Flame Sensor LH33WZ520 for Model PG9MTAV60100ABSS

This is the factory-specified OEM flame sensor (part number LH33WZ520) for the Carrier PG9MTAV60100ABSS gas furnace. The flame sensor — also called a flame rod — is a safety device mounted in the burner assembly that detects the presence of a lit flame by passing a small electrical current through it. When the sensor's rod becomes coated with oxidation or carbon buildup, resistance increases and the control board can no longer confirm combustion. The result is a classic symptom: the burner ignites normally, runs for 5–8 seconds, then shuts off — repeating this lockout cycle until the unit faults out entirely. Replacing the flame sensor is one of the most common and straightforward furnace repairs.

  • Specs: OEM part number LH33WZ520 | Single-rod flame sensor | Factory-matched electrical resistance characteristics | Replaces worn, corroded, or cracked sensors
  • OEM vs Generic: This OEM Carrier sensor is manufactured to exact factory tolerances for current draw and rod geometry. Generic sensors may have inconsistent resistance values, causing nuisance lockouts or premature failure — OEM is always the recommended choice for reliable ignition.
  • Install Difficulty: 2/5 — A straightforward repair for a qualified technician or experienced DIYer. Tools needed: 1/4" hex driver or nut driver, fine steel wool or emery cloth (to clean mounting surface), and a multimeter to verify microamp signal after installation. Always shut off gas supply and 115V power before servicing.
  • Warranty: 1-year OEM factory warranty against defects. Orders placed before cutoff ship same business day from our warehouse.

Compatibility: Designed specifically for the Carrier PG9MTAV60100ABSS gas furnace. Always verify your existing part number on the sensor body or equipment wiring diagram before ordering. Our fitment team is available to confirm compatibility before you buy — same-day shipping available on all in-stock OEM 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 PG9MTAV60100ABSS?
Yes. This is the factory-specified OEM flame sensor for the Carrier PG9MTAV60100ABSS. 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 PG9MTAV60100ABSS?
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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