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OEM Carrier Flame Sensor LH33WZ520 for PG9YAA036060ACSS
Carrier

OEM Carrier Flame Sensor LH33WZ520 for PG9YAA036060ACSS

SKU: CARRIE-PG9YAA036060ACSS-FLAME_SENSOR-LH33WZ520 Brand: Carrier
✓ Guaranteed to fit PG9YAA036060ACSS — or your money back. Terms

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Texas CMBL #19328542014
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OEM Carrier Flame Sensor LH33WZ520 for Model PG9YAA036060ACSS

This is the genuine OEM factory-authorized flame sensor (part number LH33WZ520) designed as a direct replacement for the Carrier PG9YAA036060ACSS gas furnace. The flame sensor is a critical safety component — a metal rod that detects the presence of a burner flame by passing a small microamp DC current through it. When the sensor becomes coated with oxidation or fails electrically, the furnace control board can no longer confirm combustion, triggering an automatic safety lockout. The classic symptom is a furnace that ignites, runs for 5–8 seconds, then shuts off and repeats the cycle before locking out.

  • Part Number: LH33WZ520 | Factory Authorized Carrier OEM replacement | Genuine Carrier Corporation Replacement Components Division
  • OEM vs Generic: This OEM sensor is manufactured to exact factory microamp sensitivity specifications. Generic flame sensors can have wider tolerance ranges, leading to nuisance lockouts or, worse, delayed safety shutoff — making OEM the only recommended choice for a safety-critical component.
  • Install Difficulty: 2/5 — Turn off gas and 120V power to the furnace before beginning. Tools needed: 1/4" hex driver or 5/16" nut driver, needle-nose pliers. Disconnect the single wire connector, remove the one mounting screw, and swap the sensor. Light fine steel wool or emery cloth can be used to clean the rod tip on the new sensor if needed. Total time: approximately 15–20 minutes.
  • Warranty: 1-year OEM factory warranty. In-stock and ships same business day from our warehouse.

Compatibility: Engineered for the Carrier PG9YAA036060ACSS packaged gas furnace unit. Always verify your existing part number on the furnace's wiring diagram or data label before ordering. Need help confirming fitment? Our HVAC parts specialists are standing by — order with confidence from NationalHVACParts.com.

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 PG9YAA036060ACSS?
Yes. This is the factory-specified OEM flame sensor for the Carrier PG9YAA036060ACSS. 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 PG9YAA036060ACSS?
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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