OEM Carrier Gas Furnace Flame Sensor Rod for PG8MAA066135AAJA

The flame sensor is a single metal rod that sits in the burner flame and confirms to the control board that the gas has actually ignited. Using flame rectification, it passes a tiny microamp current through the flame; if the board doesn't see that current within a couple of seconds, it shuts the gas valve as a safety measure. The classic failure symptom is a furnace that lights for a few seconds and then shuts off — over and over — finally locking out with a flame-sense fault. This usually isn't a dead sensor but a rod coated in oxide and carbon, and it's one of the most common no-heat callouts of the season. This is the OEM flame sensor rod with the correct ceramic insulator, rod length, and mounting bracket so it sits at the proper depth in the flame. A healthy sensor delivers a flame-rectification signal of roughly 1–6 microamps (DC) on a meter set to read it; a clean rod that still reads under about 0.5 microamps is failing and should be replaced. For a flame sensor, OEM matters because rod length, alloy, and insulator position determine how much current the flame can rectify. A generic sensor positioned even slightly off the flame, or made of a lower-grade alloy, produces a marginal signal the board may reject — bringing back the same short-cycle lockout you were trying to fix. Install difficulty: 1/5. Tools: 1/4" nut driver and fine emery cloth (to clean, not replace, if it's just dirty). #1 safety warning: turn off the gas and kill power at the furnace switch before servicing. 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.

Compatibility

This part is compatible with Carrier model PG8MAA066135AAJA. Always verify the part number against your unit's data plate before ordering.

Why Choose OEM?

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.

Shipping & Returns

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.