OEM Guaranteed
Same-Day Ship
30-Day Returns
Secure Checkout
The flame sensor is a slim metal rod mounted at the burner that proves a flame is truly present once the gas valve opens. It operates on flame rectification — a tiny microamp DC current passes from the rod, through the flame, to ground, telling the control board the burners actually lit. As the rod oxidizes, carbons over, or cracks, that signal drops out and the board closes the gas valve within seconds for safety. Homeowners notice the furnace firing briefly and then quitting (short-cycling), the blower pushing cold air, repeated ignition retries, or a no-heat lockout after several failed tries. A properly functioning Carrier flame sensor produces a flame current of about 1-6 microamps DC; readings under roughly 0.5 µA cause lockout. The rod uses a high-temperature Kanthal/stainless alloy that withstands continuous flame contact without scaling, and the OEM length, bend angle, and ceramic insulator are matched to the PY2PEB burner geometry so the tip rests correctly in the flame envelope. OEM matters because aftermarket sensors often rely on thinner rod stock and cheaper ceramic that oxidize faster and yield a weak, unstable microamp reading — producing nuisance lockouts even on a furnace that is burning cleanly. A genuine OEM rod restores a strong, consistent flame signal and reliable operation. Install difficulty: 2/5. Tools needed: 1/4" nut driver, fine emery cloth or steel wool, and a multimeter capable of reading DC microamps. #1 safety warning: turn off the gas and disconnect power at the furnace switch 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.
This part is compatible with Carrier model PY2PEB060090AA. Always verify the part number against your unit's data plate before ordering.
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.
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.