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The flame sensor is a thin metal rod that sits in the burner flame of your PG9MAA036080ADKA furnace and proves the burners actually lit. It works by flame rectification — the live flame conducts a tiny DC microamp current back to the control board, telling it gas is burning. If the board doesn't see that current within seconds, it shuts the gas valve as a safety measure. When the sensor is dirty or failing you'll get the most frustrating symptom in heating: the burners light for 3–7 seconds, then snap off, and the furnace short-cycles over and over, often locking out after several tries. Cold air from the vents after a brief warm puff is the classic homeowner clue. This OEM flame rod uses the correct length, bend, and Kanthal-style high-temperature alloy to deliver a stable flame-sense signal in your furnace's microamp range (typically 1–6 µA). The exact rod position relative to the burner is what keeps that signal strong and steady. Generic sensors are often the wrong length or use a lower-grade alloy that oxidizes faster, producing a weak or drifting microamp signal that triggers nuisance lockouts within a season. An OEM-spec rod restores a clean, reliable flame signal the board can trust. Install difficulty: 1 of 5 — one of the easiest furnace repairs. Tools needed: 1/4" nut driver and fine emery cloth (for the old one). #1 safety warning: SHUT OFF THE GAS and kill the furnace breaker before reaching into the burner compartment. 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 PG9MAA036080ADKA. 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.