OEM Carrier Flame Sensor for PG9MAB024060LBSA Gas Furnace

The flame sensor in your Carrier PG9MAB024060LBSA is the safety device that confirms a real flame after the burners light. Through flame rectification, the burner flame passes a small microamp current from the sensor rod to ground; the control board reads that current as proof of flame and keeps the gas valve open. As the rod oxidizes or builds a carbon/silica film, the current weakens and the board closes the gas valve to prevent unburned gas from accumulating. The telltale homeowner symptom is a furnace that fires for a few seconds, shuts down, retries, and eventually locks out — short-cycling with no lasting heat. This is a stainless/Kanthal flame rod on a high-temperature ceramic insulator with the mounting bracket and rod geometry specific to the PG9MAB burner assembly. A good sensor delivers a steady flame current (roughly 1-6 microamps DC) with high insulation resistance so current flows only through the flame. Why OEM matters here: cheap aftermarket rods use lower-grade alloy that fouls quickly and frequently position the tip at the wrong depth in the flame, giving an unstable microamp signal that trips nuisance lockouts even on a healthy burner. The OEM rod seats the tip in the hottest part of the flame and holds a strong, stable signal much longer between cleanings. Install difficulty: 2 of 5. Tools: 1/4" nut driver, fine emery cloth or a non-metallic scouring pad, and a multimeter to verify microamps. SAFETY: turn off the furnace at the breaker AND shut off the gas supply before removing the sensor from the burner area. Ships same business day from our stocked warehouse on orders placed before 3 PM CST. Backed by a 1-year OEM warranty with 30-day hassle-free returns on uninstalled parts.

Compatibility

This part is compatible with Carrier model PG9MAB024060LBSA. 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.