OEM Carrier Furnace Flame Sensor Rod Assembly for PG8JAA024070ADJA

The flame sensor is the safety device that proves a flame is actually present after your Carrier PG8JAA024070ADJA lights. The control board sends a tiny AC voltage down the rod; the burner flame rectifies it into a small DC microamp signal that tells the board to keep the gas valve open. When the rod oxidizes or cracks, that signal drops and the board shuts the gas off within seconds — so the classic symptom is a furnace that ignites, burns for 2-7 seconds, then snuffs out and tries again, repeating until it locks out after 3-5 failed trials. Homeowners notice short bursts of warm air, clicking, and eventually no heat. This is a single-rod sensor: a heat-resistant stainless/Kanthal alloy element on a ceramic insulator with a spade or screw terminal. A healthy flame produces roughly 1-6 microamps DC at the board; anything below ~0.5 µA triggers loss-of-flame. The rod must sit in the hottest part of the burner flame, so position and gap matter. Why OEM: a genuine sensor uses the correct alloy and insulator that resist the oxide buildup that kills cheap rods, and the exact rod length/bend so it bathes in flame. Generic sensors with thinner or wrong-alloy rods oxidize faster and read low, putting you right back into flame-failure lockouts within a season. Install difficulty: 1/5. Tools: 1/4" nut driver, fine emery cloth or steel wool, and a multimeter set to microamps to verify flame signal. #1 SAFETY: turn off the gas at the valve and kill power before servicing — and never sand a new rod with anything that leaves residue. Ships same business day from our stocked warehouse on orders 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 PG8JAA024070ADJA. 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.