OEM Carrier Flame Sensor for PG9MAB060100ACSA Gas Furnace Rod

The flame sensor is the single metal rod that sits directly in the burner flame and proves to the control board that ignition actually happened. Through flame rectification it converts the burning gas into a tiny DC microamp signal. As the rod accumulates oxide or carbon, or simply ages, that signal falls below the board's minimum and the board closes the gas valve as a safety response. On the PG9MAB060100ACSA this shows up as short-cycling: the burners light, hold for only a few seconds, then shut off, the inducer purges, and the furnace retries until it locks out and quits making heat. This is a single-rod rectification sensor with a high-temperature stainless/Kanthal alloy tip and a ceramic insulator. A healthy rod produces about 1-6 microamps DC, and most Carrier boards require a stable minimum near 0.5-1.5 µA to keep the valve energized. The rod length and bend are set so the flame fully surrounds the tip. OEM matters because the rod's geometry and alloy are matched to this burner. Generic sensors with the wrong length, bend, or a cheaper tip sit partially outside the flame and put out a weak, erratic signal, triggering nuisance lockouts that get misdiagnosed as a bad board or valve. Install difficulty: 2 of 5. Tools: 1/4" nut driver, fine emery cloth or steel wool for adjacent contacts, and a multimeter that reads DC microamps to confirm the new signal. #1 safety warning: shut off the gas and kill power at the 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.

Compatibility

This part is compatible with Carrier model PG9MAB060100ACSA. 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.