OEM Carrier Flame Sensor for PG8UAA036111ACJA Gas Pack Furnace

The flame sensor is the safety device that proves your burners actually lit in the Carrier PG8UAA036111ACJA gas-pack furnace. It sits in the burner flame and uses flame rectification — a tiny microamp DC current that flows through the flame to ground — to tell the control board a real flame is present. When it gets coated in carbon/oxide or weakens, that current drops below threshold, the board assumes no flame, and it shuts the gas valve as a safety. The classic symptom: the furnace lights for 3-7 seconds, then the flame drops out and the unit short-cycles or locks out after several failed trials, leaving you with little or no heat. This genuine OEM flame sensor uses the correct Kanthal/stainless rod length and ceramic insulator so it seats at the proper depth in the flame and returns a healthy signal — typically in the 2-6 microamp range that the PG8U board expects to see. The mounting bracket and spade terminal match the factory burner assembly. OEM matters because rod geometry and insulator quality directly affect the rectified signal. Generic sensors with the wrong length or a leaky insulator read low, causing intermittent flame-loss lockouts that are maddening to diagnose. The OEM part restores a clean, stable microamp signal. Install difficulty: 1/5. Tools: 1/4" nut driver, fine emery cloth or steel wool (to clean the new rod's tip if needed), and a multimeter set to DC microamps to verify flame current. #1 safety warning: turn off the gas at the unit shutoff and kill the breaker before removing the sensor near the burners. 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 PG8UAA036111ACJA. 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.