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OEM Carrier Flame Sensor w/Lead LH680534 for PG95SAS30040AAAA
OEM Carrier Flame Sensor w/Lead LH680534 for PG95SAS30040AAAA
OEM Carrier Flame Sensor w/Lead LH680534 for PG95SAS30040AAAA
OEM Carrier Flame Sensor w/Lead LH680534 for PG95SAS30040AAAA
Carrier

OEM Carrier Flame Sensor w/Lead LH680534 for PG95SAS30040AAAA

SKU: CARRIE-PG95SAS30040AAAA-FLAME_SENSOR-LH33WZ521 Brand: Carrier
✓ Guaranteed to fit PG95SAS30040AAAA — or your money back. Terms

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Texas CMBL #19328542014
SAM.gov Registered
Govt POs Accepted

OEM Carrier Flame Sensor LH680534 (Replaces LH33WZ521) for Model PG95SAS30040AAAA

This is the genuine OEM Carrier flame sensor with lead wire, part number LH680534, the current factory-authorized replacement for the discontinued LH33WZ521. It is the direct, drop-in fit for the Carrier PG95SAS30040AAAA 95% AFUE gas furnace. The flame sensor is a safety-critical component: a small metal rod positioned in the burner flame that passes a micro-amp current through the flame to confirm ignition. When the sensor fails or becomes coated with oxidation, the furnace control board cannot verify flame presence and will shut off the gas valve — typically after 5 to 8 seconds of operation — triggering a lockout fault and leaving you without heat.

  • OEM Part Numbers: LH680534 (current) | LH33WZ521 (superseded/discontinued) — this listing ships the current LH680534 revision, which includes a pre-attached lead wire for easy plug-in installation.
  • OEM vs Generic: Genuine Carrier OEM sensors are manufactured to exact rod geometry, insulation thickness, and micro-amp response specifications. Generic aftermarket sensors may read flame current outside the control board's acceptance window, causing nuisance lockouts even after installation.
  • Install Difficulty: 2/5 — Turn off power and gas before starting. The sensor is secured by a single 1/4" hex-head screw inside the burner compartment. Tools needed: 1/4" nut driver, needle-nose pliers. Lightly clean rod with fine steel wool before re-use or install new sensor. Reconnect lead connector and restore power to verify operation.
  • Warranty: 1-year OEM manufacturer's warranty against defects. Ships same business day from our warehouse when ordered by 3:00 PM local time.

Compatibility: Engineered for the Carrier PG95SAS30040AAAA 40,000 BTU 95% AFUE single-stage gas furnace. Also cross-references to multiple Carrier, Bryant, and Payne furnace models. Always verify your unit's model and data plate before ordering — our parts specialists are available to confirm fitment at no charge. Order now and get your furnace back up and running — same-day shipping available.

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 PG95SAS30040AAAA?
Yes. This is the factory-specified OEM flame sensor for the Carrier PG95SAS30040AAAA. 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 PG95SAS30040AAAA?
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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