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The flame sensor is your Carrier furnace's safety eye. After the igniter lights the burners, this single metal rod sits in the flame and uses flame rectification — a tiny microamp DC current that the flame itself conducts — to prove to the control board that a real fire is present. If the board doesn't sense that current within a few seconds, it shuts the gas valve to prevent raw gas from flooding the heat exchanger. When the sensor gets dirty or weak, the most recognizable symptom is short-cycling: the furnace lights, runs for 3–7 seconds, then shuts off, and repeats. Homeowners describe heat that "comes on then quits" or a furnace that lights several times an hour but never satisfies the thermostat. Specs: This OEM flame sensor is built from a high-temperature Kanthal-grade alloy rod on a ceramic insulator with a matched mounting bracket and terminal. A healthy sensor passes a flame-signal current in the 2–6 microamp range; below roughly 0.5 µA the board will drop out. The ceramic insulator is rated to withstand sustained burner-flame temperatures without tracking current to ground. OEM vs Generic: A flame sensor's whole job is conducting a clean, stable microamp signal. Generic rods often use lower-grade alloys and insulators that oxidize faster, crack, or leak current to the burner assembly, producing intermittent flame-loss faults that are maddening to diagnose. The OEM rod's alloy and length are matched to your burner geometry so it sits correctly in the flame envelope. Install difficulty: 1/5. Tools: 1/4" nut driver, fine emery cloth, multimeter (microamp). SAFETY: turn off the gas supply and kill power at the breaker before removing the sensor. Never sand a new rod with steel wool — it leaves conductive residue. 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 PY2PPB060130NB. 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.