OEM Carrier Gas Furnace Flame Sensor Rod for PG8UAA048111ABJA

The flame sensor is a single metal rod that sits in the burner flame and confirms the gas is actually lit on your Carrier PG8UAA048111ABJA. It works by flame rectification — a microamp current passes from the rod through the flame to ground, telling the control board it's safe to keep the gas valve open. When the sensor is dirty or failing, the board can't prove flame, so it shuts the gas off within a few seconds. The tell-tale symptom is short-cycling: the burners light, stay on for 2–5 seconds, then shut off, and the furnace repeats this several times before locking out — leaving you with little or no heat. This is a genuine Carrier flame sensor rod with the correct rod length, bend, and ceramic insulator to sit properly in your burner flame. A good sensor passes roughly 1–6 microamps of flame current; readings below ~0.5 µA mean a weak or failed rod. Why OEM matters: the rod material and insulator on a genuine Carrier sensor maintain a strong, stable flame-rectification signal. Generic rods are often the wrong length or use lower-grade insulators that leak current to ground, producing marginal microamp readings that cause nuisance lockouts even when the rod looks clean. Install difficulty: 1 of 5 — one of the easiest furnace repairs. Tools: 1/4" nut driver and fine emery cloth to clean the mounting boss. SAFETY: turn off the gas supply and electrical power before removing the old sensor. Route the new rod so it doesn't touch the burner or cabinet, which would short the signal to ground. 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 PG8UAA048111ABJA. 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.