OEM Carrier Flame Sensor Replacement for PY2PEB036090AA Furnace

The flame sensor in your Carrier PY2PEB036090AA is a single metal rod that verifies an actual flame is burning once the burners ignite. It relies on flame rectification — a small microamp current flowing through the flame to ground — to prove to the control board that combustion is safe. When the rod's tip becomes coated with oxide, carbon, or silica, or cracks from heat fatigue, the board stops sensing the flame and shuts the gas valve almost immediately. The homeowner sees the burners catch for a second or two then drop out, the furnace short-cycling repeatedly, lukewarm or cold air at the vents, and ultimately a lockout where the unit will not stay lit. This is a single-rod stainless flame sensor with a heat-resistant ceramic insulator rated for sustained burner-flame exposure. A healthy rod conducts about 2–6 microamps of rectified DC; anything under roughly 0.5 µA points to a fouled or failing sensor. The OEM part matches the PY2PEB burner spacing and bracket so the tip lands in the proper part of the flame. Location and metal matter more than anything on a flame sensor. Generic rods often differ slightly in length or angle, placing the tip at the flame's edge where it produces a weak, drifting signal and nuisance lockouts. OEM-grade stainless oxidizes more slowly and holds a steady microamp reading, extending service life. Install difficulty: 2/5. Tools: 1/4" nut driver, fine emery cloth or non-abrasive pad, and a multimeter capable of reading DC microamps. SAFETY: turn off the gas at the shutoff valve and kill power at the furnace switch before opening the burner compartment. 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 PY2PEB036090AA. 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.