OEM Carrier Flame Sensor for PG8UAA036111AAJA Gas/Electric Unit

The flame sensor in your Carrier PG8UAA036111AAJA package unit is a single metal rod that sits in the burner flame and confirms ignition to the control board using a tiny microamp current (flame rectification). When it gets coated with oxide or carbon, the control board can no longer 'see' the flame and shuts the gas valve off as a safety measure. The classic symptoms: the burners light for a few seconds then go out, the unit short-cycles on every heat call, you get no heat despite hearing ignition, or the furnace locks out after several failed attempts and throws a flame-sense fault code. This is a silicon-carbide-tipped sensing rod with a high-temperature ceramic insulator and a spade or screw terminal. A healthy sensor passes roughly 2–6 microamps of DC flame current; anything under ~1 µA usually means the rod is fouled or worn. OEM Carrier sensors use the correct rod length and alloy so the tip sits properly in the flame envelope. Why OEM matters: generic flame sensors often use thinner rods or off-spec alloys that oxidize faster, drift out of position, or read inconsistent microamps — leaving you with intermittent no-heat calls that are maddening to diagnose. The right rod geometry keeps flame current strong and stable for years. Install difficulty: 1 of 5. Tools needed: 1/4" nut driver, fine steel wool or emery cloth (for cleaning the old one if testing), and a multimeter capable of reading DC microamps. #1 safety warning: turn off both the gas supply and the electrical breaker before servicing the burner assembly. Never sand a sensor rod with abrasive that leaves 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 PG8UAA036111AAJA. 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.