OEM Carrier Gas Furnace Flame Sensor for Model PG9MAB036060LBSA

The flame sensor in your Carrier PG9MAB036060LBSA packaged gas furnace is a single metal rod that proves the burners actually lit. Using flame rectification, it passes a tiny microamp current through the flame to ground; the control board reads this signal and keeps the gas valve open only while a real flame is present. When the sensor oxidizes, cracks, or its signal drops too low, the board sees "no flame," shuts the gas valve within seconds as a safety measure, and the furnace locks out. The classic symptom is a furnace that ignites, burns for 3–7 seconds, then snuffs out — repeating several times before a hard lockout and no heat. This is a single-rod sensor with a high-temperature ceramic insulator and a Kanthal-type alloy tip rated for direct flame immersion. A healthy sensor on this furnace typically reads a flame current in the low microamp range (often 2–6 µA); anything below the board's threshold triggers dropout. The mounting bracket and rod length are matched to the burner position in the PG9MAB heat exchanger. OEM matters because rod length, tip alloy, and insulator quality determine how clean a microamp signal the sensor delivers. Generic sensors with thinner plating oxidize faster and cause repeat no-heat calls within a season, and a rod positioned even slightly off the flame envelope reads weak. Install difficulty: 1 of 5. Tools needed: 1/4" nut driver and fine emery cloth (for the old one); a multimeter set to microamps verifies the new reading. #1 safety warning: turn off the gas and kill the breaker before removing the sensor near the burners. 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 PG9MAB036060LBSA. 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.