OEM Carrier Flame Sensor for PY3PNA024060NB Gas Furnace Heater

The flame sensor is a single thin metallic rod positioned directly in the burner flame whose only job is to prove to the control board that the burners actually lit. It senses flame through rectification — bathed in flame, the rod passes a tiny microamp DC current back to the board. As the rod oxidizes, builds up a carbon film, or cracks, that current fades until the board can no longer confirm a flame. The classic homeowner symptoms are a furnace that lights for several seconds then shuts off (short-cycling), repeated ignition retries, lukewarm or cold air at the vents, and finally a hard lockout that leaves the home without heat. This genuine Carrier flame sensor uses a high-temperature Kanthal-grade rod with a porcelain insulator rated for sustained burner heat, delivering a steady 1–6 microamp signal — comfortably above the ~0.5 µA threshold where most boards drop out. The OEM bracket and spade terminal hold the rod at the precise depth and angle inside the flame the factory specified. OEM matters because reliable flame proving depends on a stable signal over time. Generic rods are commonly made from thinner, cheaper alloys that oxidize and drift quickly, so the furnace reads fine at install but begins nuisance-locking out within one season, leading to repeat service calls. Install difficulty: 1 of 5. Tools needed: a 1/4" nut driver, fine steel wool or emery cloth to clean the seating surface, and a multimeter set to DC microamps to verify the reading. #1 safety warning: shut off the gas supply AND turn off 120V power at the breaker before removing the sensor. Ships same business day from our stocked warehouse on orders placed before 3 PM CST. Backed by a 1-year OEM warranty and 30-day hassle-free returns on uninstalled parts.

Compatibility

This part is compatible with Carrier model PY3PNA024060NB. Always verify the part number against your unit's data plate before ordering.

Why Choose OEM?

OEM parts are manufactured to the exact factory specifications for your unit. Generic aftermarket alternatives may fit physically but often use lower-rated components that reduce equipment life and void manufacturer warranties. When the cost difference between OEM and generic is $10-30, the OEM part is always the smarter investment on a system worth $5,000-$15,000.

Shipping & Returns

Same-day shipping on orders before 3 PM CST. Standard delivery 2-5 business days, express options available at checkout. 30-day hassle-free returns on uninstalled parts — free return shipping included. 1-year OEM factory warranty coverage.