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The flame sensor is the safety device that confirms your Carrier furnace has actually established a flame after the igniter fires. It works by flame rectification — a tiny microamp current passes through the flame to ground — telling the control board the burners are truly lit. When the sensor's metal rod oxidizes, carbons over, or cracks, that signal weakens and the board can no longer 'see' the flame. The classic symptom is short-cycling: the furnace lights, runs for 3 to 7 seconds, then shuts the gas off, retries two or three times, and finally drops into hard lockout. Homeowners notice warm air that quits almost immediately, repeated clicking from the gas valve, and a house that never reaches the thermostat setpoint. This OEM flame sensor is built to the exact rod length, bend angle, and mounting-bracket geometry of the PG96VAT60100CAAA so it sits the correct distance into the burner flame. A healthy sensor on this furnace reads roughly 1.5 to 6 microamps of flame current; anything under about 0.5 µA trips a flame fault. The rod is high-temperature stainless/Kanthal wire rated for continuous burner exposure. Generic flame sensors often use thinner rods or looser-tolerance ceramic insulators that oxidize faster, drift out of microamp spec, and bring the same short-cycling back within a season. OEM tolerances keep the flame-current signal strong and stable so the board reads a clean flame on the first try. Install difficulty: 2 of 5. Tools: 1/4" nut driver, fine emery cloth or steel wool to clean the rod, and a multimeter set to DC microamps to verify flame current. #1 safety warning: shut off the gas supply and kill power at the furnace switch or breaker 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 PG96VAT60100CAAA. 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.