OEM Carrier Gas Furnace Flame Sensor Rod for PG9MAA060140ACKA

The flame sensor on your Carrier PG9MAA furnace is a single rod that confirms the burners actually ignited. Through flame rectification, the live flame passes a microscopic DC current from the rod to ground, signaling the control board that fire is present. If that current does not appear within a few seconds of the gas valve opening, the board closes the gas for safety. The telltale symptom is a furnace that lights cleanly, burns for 3 to 7 seconds, then drops out and retries — short-cycling until it locks out and leaves you with no heat. Most often the rod is simply coated with oxide or carbon, but cracked insulators and eroded rods do fail completely. Specs: This is a single-rod flame sensor with a high-temperature alloy rod and a ceramic insulator. Flame current is read in microamps — a strong, reliable signal sits in the 1 to 5 µA range, and most control boards will not hold the valve open below roughly 0.5 to 1 µA. The rod length and its seating depth in the flame are specific to this burner assembly. OEM vs Generic: A flame sensor only works if the rod sits precisely in the flame. Generic rods with the wrong length or bend deliver a weak microamp reading that drifts and drops out as the part ages, and their lower-grade alloys oxidize and erode faster. OEM geometry and metallurgy maintain a strong, stable signal across many more heating seasons. Install: Difficulty 1/5. Tools: 1/4-inch nut driver, fine emery cloth or steel wool to polish the rod, and a multimeter capable of reading microamps. SAFETY: Shut off the gas and kill power at the furnace before removing the sensor. 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 PG9MAA060140ACKA. 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.