OEM Carrier Gas Furnace Flame Sensor Rod for PG8UAA066111ACJA

The flame sensor is a thin metal rod that sits in the burner flame and confirms to the control board that the burners actually lit. It works by flame rectification — the flame conducts a tiny microamp current the board listens for. When the rod gets coated in oxide and carbon, it can no longer sense the flame, so the board shuts the gas off within seconds as a safety measure. The classic symptom is short-cycling: the burners light, run for 3–7 seconds, then shut off, repeating until the furnace locks out. The result is little or no heat and a blower pushing cool air. Specs: A healthy flame sensor passes a microamp signal, typically 1–6 µA measured with a meter in series; below about 0.5 µA the board drops the flame and shuts down. It's a single-wire device — light surface oxide can be cleaned with fine steel wool or emery cloth, but a pitted rod or a cracked porcelain insulator means replacement. This rod is a direct fit for the PG8UAA burner assembly. Why OEM matters: Rod length, bend, and porcelain insulator quality determine whether the tip sits correctly in the flame and whether current leaks to ground. Generic sensors with the wrong geometry or cheap insulators give weak, drifting signals that cause the very same nuisance short-cycling you're trying to fix. OEM geometry restores a clean, stable flame signal the board can trust. Installation difficulty: 1/5. Tools needed: 1/4" nut driver. #1 safety warning: TURN OFF the gas supply and kill power at the breaker before removing the sensor from the burner box. 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 PG8UAA066111ACJA. 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.