OEM Carrier Flame Sensor for PG8MAA036070AAJA Gas Package Unit

The flame sensor is the safety device that confirms your Carrier PG8MAA036070AAJA package unit has actually lit. It works by flame rectification — a microamp DC current passes from the metal rod through the burner flame to ground, telling the control board that fuel is being burned. When the rod oxidizes or the signal drops, the board can't prove flame and shuts the gas valve within seconds. The classic symptom is a furnace that lights, burns for 3–7 seconds, then shuts off and repeats — short-cycling with no sustained heat, often ending in a hard lockout. This is a single-rod flame-rectification sensor with a high-temperature ceramic insulator and a Kanthal-type alloy rod that withstands continuous flame contact. A healthy sensor passes roughly 1–6 microamps DC; readings below about 0.5 µA mean it's time to clean or replace it. Why OEM matters here: the rod length, bend angle, and insulator rating are tuned to sit precisely in this burner's flame envelope. Generic sensors with the wrong geometry sit too far from the flame or use thinner alloy that oxidizes quickly, producing a weak signal that triggers the same nuisance lockouts you're trying to fix. Install difficulty: 1/5 — one of the easiest HVAC repairs. Tools: 1/4" nut driver or screwdriver, light sandpaper or a Scotch-Brite pad for cleaning, and a multimeter set to DC microamps to verify the flame-sense reading. #1 safety warning: turn off the gas at the shutoff valve and kill electrical power before reaching into the burner area. Never clean the rod with steel wool, which leaves conductive residue. 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 PG8MAA036070AAJA. 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.