OEM Carrier Flame Sensor for PG8DAA036070ADJA Gas Pack Furnace

The flame sensor is the safety device that proves your burners have actually lit. It's a single metal rod positioned in the burner flame that uses flame rectification — a tiny microamp current passing through the flame back to the control board. When the rod oxidizes, cracks, or its ceramic insulator fails, the board can no longer 'see' the flame and shuts the gas valve within 2-4 seconds. The classic symptom on this PG8DAA packaged unit is short-cycling: the furnace ignites, runs briefly, then snuffs out and tries again, often locking out after 3-5 attempts with no heat and a blower running cold air. This is a genuine Carrier flame rectification rod built with a high-temperature Kanthal/stainless sensing element and a factory-rated ceramic insulator. A healthy unit produces a steady flame-signal current in the 1-6 microamp DC range; a fouled or wrong-depth rod reads below the board's lockout threshold. OEM matters here because the rod length and bend position are engineered to sit in the exact hottest part of this burner's flame. Generic rods routinely sit too shallow or use cheaper insulators that leak current, producing a weak signal and nuisance lockouts even when the furnace is otherwise healthy. Install difficulty: 2 of 5. Tools: 1/4" nut driver, fine emery cloth or steel wool to clean the rod, and a multimeter capable of reading microamps to verify the flame signal. #1 safety warning: shut off the gas supply and kill power at the breaker before removing the sensor — never service 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 PG8DAA036070ADJA. 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.