OEM Carrier Gas Furnace Flame Sensor for Model PG8JAA036045ADJA

The flame sensor on your Carrier PG8JAA036045ADJA gas furnace is the safety component that confirms a flame is actually present after the igniter fires. It sits in the burner flame and sends a tiny microamp current back to the control board through flame rectification. When this rod gets coated with silicon oxide or carbon, the signal weakens and the board can no longer 'see' the flame. The classic homeowner symptom is short-cycling: the burners light for 3 to 7 seconds, then shut off, the inducer keeps running, and after a few failed tries the furnace locks out and you get no heat. Many service calls written up as 'bad board' are really just a dirty or cracked flame sensor. This is a genuine Carrier-spec sensor with the correct rod length, ceramic insulator, and 1/4" male spade terminal so the flame signal stays in the healthy 2-6 microamp range. The insulator is rated for continuous high-temperature burner-box exposure without tracking to ground. Replacement resistance to ground should read near-infinite on a cold unit. Why OEM matters here: aftermarket sensors often use thinner rods and lower-grade insulators that crack and short to ground, producing the same lockout you were trying to fix. The OEM geometry positions the rod correctly in the flame envelope so rectification stays stable across the burner's life. Install difficulty: 1 of 5. Tools: 1/4" nut driver and a multimeter set to microamps if you want to verify the new reading. #1 safety warning: shut off the gas and kill power at the furnace disconnect before reaching into the burner compartment. Pull the single screw, unplug the spade, and reverse. 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 PG8JAA036045ADJA. 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.