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The flame sensor is the small single-rod probe that confirms your Carrier PY3PNA060130NA actually lit after the igniter glows and the gas valve opens. It works by flame rectification — the burner flame conducts a tiny microamp current to ground, telling the control board to hold the gas valve open. When the rod becomes coated with oxide or carbon, that signal drops and the board shuts the gas off as a safety measure. The classic symptom is a furnace that lights for 3–7 seconds and then shuts down, repeating over and over (short-cycling) and often locking out after several tries with no heat. Specs: this is an OEM single-rod stainless/Kanthal flame rod sized and angled to sit correctly in the burner flame, supplied with the matching ceramic insulator and spade or molex connector for your unit. A healthy sensor reads a flame current in the 2–6 microamp range; below roughly 0.5 µA the board drops out. Why OEM matters: generic rods are often the wrong length or bend, so the tip never fully bathes in flame and you get marginal, drifting microamp readings that cause nuisance lockouts. The OEM rod and insulator place the sensing surface exactly where Carrier engineered it. Install difficulty: 1 of 5 — one of the easiest furnace repairs. Tools: 1/4" nut driver, fine emery cloth or steel wool (to clean, if reusing), and a multimeter set to DC microamps to verify flame current. #1 safety warning: turn off the gas and power before removing the burner-area sensor, and never bend the rod to 'adjust' it. Ships same business day from our stocked warehouse on orders 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 PY3PNA060130NA. 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.