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The flame sensor is a small but essential safety component in your Carrier PG95SAS42060BBAA furnace. It is a single metal rod positioned in the burner flame that uses flame rectification — a tiny microamp DC current passing through the ionized flame — to prove to the control board that the burners actually lit. If the board doesn't sense that current within a few seconds of opening the gas valve, it shuts the gas off and tries again. When the sensor is dirty, corroded, or failing, the classic symptom appears: the furnace lights, runs for 3 to 7 seconds, then shuts down and short-cycles, often locking out after three or four tries and leaving you with no heat. This is an OEM-spec flame sensor rod with the correct length, bend, and ceramic insulator to sit properly in the flame path for this furnace. The board expects a healthy flame-rectification signal, typically in the low microamp range; a bent or wrong-geometry rod won't read enough current. Why OEM matters: generic rods often use thinner or differently-alloyed wire and lower-grade ceramic insulators that crack and carbon up faster, causing the exact short-cycling they were meant to prevent. A genuine Carrier sensor maintains a stable microamp signal and a longer service life. Install difficulty: 1 of 5 — one of the easiest fixes on the furnace. You'll need a 1/4" nut driver and, ideally, a multimeter set to DC microamps to verify flame current after install. #1 safety warning: turn off power at the breaker and close the gas valve before reaching into the burner compartment. Never sand a new sensor — handle it by the ceramic base only. 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 PG95SAS42060BBAA. 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.