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The flame sensor is your Carrier PG95SAS60100CAAA furnace's safety watchdog. Once the burners light, this thin metal rod sits in the flame and generates a tiny microamp current through flame rectification, telling the control board that gas is actually burning. When the rod becomes coated with oxidation or carbon, that signal weakens. The classic symptom is short-cycling: the furnace ignites, runs for three to seven seconds, then shuts the gas off. After three failed tries the board goes into hard lockout and you get no heat at all — often noticed as cold air from the registers on the coldest mornings. Specs: this is a single-rod rectification sensor with a Kanthal/stainless flame rod rated for continuous high-temperature exposure. A healthy sensor reads roughly 1–6 microamps of flame current at the control board; anything under about 0.7 µA typically triggers lockout. The ceramic insulator and mounting bracket match Carrier's original spacing so the rod lands in the correct part of the flame envelope. OEM matters here because rod geometry and insulator quality are everything. Generic sensors often use a thinner rod or a lower-grade insulator that cracks under heat, causing intermittent dropouts that are maddening to diagnose. The correct OEM rod position guarantees a strong, stable flame-current signal your board will trust. Install difficulty: 2 of 5. Tools: 1/4" nut driver, fine emery cloth or a Scotch-Brite pad, and a multimeter set to DC microamps if you want to verify the reading. #1 safety warning: shut off the gas supply and kill power at the furnace switch or breaker before removing the burner-compartment panel. 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 PG95SAS60100CAAA. 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.