OEM Carrier Flame Sensor for PG8DAA036070ACJA Gas Pack Furnace

The flame sensor is the safety device that proves your burners have actually lit. It's a single metal rod sitting in the burner flame that works by flame rectification — a tiny microamp current passing through the flame back to the control board. When the rod oxidizes, cracks, or its ceramic insulator breaks down, the board can no longer detect the flame and closes the gas valve within 2-4 seconds. On this PG8DAA036070ACJA packaged unit the telltale symptom is short-cycling: the furnace lights, runs for a few seconds, then drops out and retries — usually locking out after several attempts and leaving you with no heat and cold air from the registers. This is a genuine Carrier flame rectification rod with a high-temperature Kanthal/stainless sensing element and a factory-rated ceramic insulator. A healthy system produces a steady flame-signal current in the 1-6 microamp DC range; a fouled or out-of-position rod falls below the board's lockout threshold. OEM matters because the rod's length and bend place it in the precise hottest zone of this burner's flame. Generic rods often sit too shallow or use cheaper insulators that leak current, yielding a weak signal and nuisance lockouts even on an otherwise healthy furnace. Install difficulty: 2 of 5. Tools: 1/4" nut driver, fine emery cloth or steel wool to clean the rod, and a multimeter that reads microamps to verify the flame signal. #1 safety warning: shut off the gas supply and cut power at the breaker before removing the sensor — never work on the burner assembly with gas live. 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 PG8DAA036070ACJA. 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.