OEM Carrier Furnace Flame Sensor Rod for PY3PEA048115AA Gas Heat

The flame sensor is a single metal rod that sits in the burner flame and confirms to the control board that gas has actually ignited. It works on flame rectification — the flame conducts a tiny microamp DC current that proves the burner is lit. If the board doesn't see that signal within a few seconds, it shuts the gas valve as a safety measure. The classic symptom of a failing flame sensor is a furnace that lights, runs for 3 to 7 seconds, then shuts the burners off and tries again — short-cycling that may repeat several times before the unit locks out and leaves you with no heat. A sensor coated in white oxide or carbon buildup is the most common cause. This is the genuine Carrier flame sensor rod with the correct rod length, bend, and ceramic insulator to seat properly in the burner flame and read a strong signal — typically 2 to 6 microamps DC on a healthy system measured in series with the sensor wire. OEM matters because rod position and length determine how much flame the sensor sees. An aftermarket sensor with the wrong geometry or an inferior insulator reads a weak or noisy signal, causing the same nuisance lockouts you're trying to fix and degrading faster from heat. Install difficulty: 1/5. Tools needed: 1/4" nut driver and fine emery cloth to clean the new rod's mounting area; a multimeter set to DC microamps helps verify the flame signal. #1 safety warning: shut off the gas supply and kill power at the furnace before removing the sensor from the burner assembly. 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 PY3PEA048115AA. 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.