OEM Carrier Flame Sensor Rod for PG9MAB024060ACSA Gas Package Unit

The flame sensor is a single metal rod that sits directly in the burner flame and confirms the gas has actually lit. Using flame rectification, it passes a tiny microamp current through the flame back to the control board. As it accumulates oxide and silica buildup, it can no longer prove flame, and the board closes the gas valve within seconds as a safety response. The telltale symptom on your Carrier PG9MAB024060ACSA is short-cycling on a call for heat: the burners light, run two to seven seconds, then shut off, and the cycle repeats — often ending in a lockout after several tries and no heat to the home. The sensor is a porcelain-insulated alloy rod calibrated to the board flame-rectification threshold, typically proving flame with a steady DC signal in the 1 to 6 microamp range and locking out below roughly 0.5 to 1 microamp. The single-rod length and mounting bracket match the PG9MAB024060ACSA burner geometry exactly. Flame sensing is a precision low-current circuit. OEM rods use the correct alloy and insulator resistance so the microamp signal stays clean; generic rods often have higher insulator leakage or the wrong rod length and position, producing a weak or erratic signal that nuisance-trips the board even when the flame itself is healthy. A few cents saved becomes repeated no-heat calls. Install difficulty: 1 of 5. Tools: 1/4-inch nut driver, fine emery cloth or steel wool for inspecting the old one, and a multimeter capable of reading DC microamps. #1 safety warning: turn off both electrical power and the gas supply before removing the sensor near the burners. Do not sand a new sensor — install it clean and dry, handling only the ceramic base. 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 PG9MAB024060ACSA. 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.