OEM Carrier Flame Sensor Replacement for PG9MAB060080ACSA Furnace

The flame sensor is a thin metal rod seated directly in the burner flame that confirms—through a tiny microamp rectification current—that the gas igniting in your PG9MAB060080ACSA is actually burning. When the rod becomes coated with oxide or carbon, the control board can no longer "see" the flame and shuts the gas valve within seconds as a safety response. Homeowners typically notice a furnace that lights, runs for only 3 to 7 seconds, then shuts off and re-tries repeatedly. After several failed attempts the board locks out and the furnace produces no heat, often leaving a faint gas smell at each ignition cycle. This OEM sensor uses a Kanthal-grade rod rated for continuous flame-temperature exposure and is calibrated to deliver the 0.5–6 microamp signal Carrier's ignition logic expects. The ceramic insulator is dimensioned to hold the correct rod-to-burner gap and maintain full electrical isolation; a clean sensor in a healthy flame reads in the low single-digit microamps. Because flame sensing is a safety circuit, signal accuracy is critical. Generic rods often use lower-grade alloys that oxidize within a single season and insulators with looser tolerances, dropping the microamp reading below the board's threshold and causing nuisance lockouts. The exact OEM rod length and insulator placement preserve the flame-rectification margin Carrier engineered. Install difficulty: 2/5. Tools needed: 1/4" nut driver, fine emery cloth or steel wool, and a multimeter set to microamps. #1 safety warning: shut off both the gas supply and the 120V power at the furnace disconnect before removing the sensor—never service a furnace with live gas. 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 PG9MAB060080ACSA. 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.