OEM Carrier Flame Sensor for PG8DAA024070ABJA Packaged Gas Furnace

The flame sensor is the safety component that confirms your Carrier PG8DAA024070ABJA has established a real burner flame. Through flame rectification it passes a small microamp DC current through the flame, telling the control board the burners are lit. As the rod accumulates oxide and silica scale, that current falls and the board closes the gas valve within seconds to prevent unburned gas. The hallmark symptom is short-cycling on a heat call: the furnace ignites, burns for a few seconds, then shuts down — often repeating until it hits hard lockout and blows nothing but cold air. This is a single-rod flame-rectification sensor built around a Kanthal/stainless steel rod on a ceramic insulator. A healthy sensor reads roughly 1.5–6 microamps DC in flame; once it drops below about 0.5 µA the board drops the gas valve. Confirm rod length, bend angle, and connector/bracket style against your OEM part — Carrier uses multiple rod geometries across the PG8 family, and the wrong shape won't seat properly in the flame. For a flame sensor, OEM positioning is critical. A generic rod that sits too shallow or too high reads a weak signal even with a perfect flame, producing nuisance lockouts that strand you without heat. Cheaper alloys also oxidize faster and foul again within months. The OEM rod is shaped to ride in the hottest, most ionized zone of the flame for a strong, repeatable signal. Install difficulty: 1/5. Tools: 1/4" nut driver, fine emery cloth or a scotch pad, multimeter set to DC microamps. #1 safety warning: TURN OFF THE GAS and the breaker before servicing — you're working directly at the burner assembly. Never clean the rod with steel wool, which leaves conductive residue that skews the reading. 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 PG8DAA024070ABJA. 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.