OEM Carrier Furnace Flame Sensor Replacement for PY2PNB060090NB

The flame sensor is a simple but critical safety device in your Carrier furnace. After the igniter lights the burners, the sensor — a thin metal rod positioned in the flame — uses flame rectification to send a tiny microamp signal back to the control board, proving the burners actually lit. If the board doesn't see that current within a few seconds, it shuts the gas valve to prevent a dangerous gas buildup. The classic failure symptom is a furnace that lights normally, runs for 3-7 seconds, then shuts off — over and over. This short-cycling is almost always a flame sensor coated with oxide or carbon buildup, or a cracked, eroded rod that can no longer carry the signal. This is a single-rod flame sensor with a ceramic insulator and a spade or screw terminal. A healthy sensor reads a flame current typically in the 1-6 microamp range; below roughly 1 µA the board will drop out. OEM Carrier sensors use the correct rod alloy, length, and insulator rating to sit precisely in the flame envelope of your burner. OEM matters because rod position and material determine the signal strength. A generic sensor that's the wrong length or alloy sits in the wrong part of the flame, reads a weak microamp signal, and triggers the same nuisance lockouts you're trying to fix. Cheaper insulators also break down and short to ground. Install difficulty: 1 of 5 — one of the easiest furnace repairs. Tools: 1/4" nut driver and fine emery cloth or steel wool (to clean, if not replacing). Safety: shut off the gas supply and kill the electrical breaker before removing the single mounting screw and the wire lead. 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 PY2PNB060090NB. 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.