OEM Carrier Flame Sensor for PG8JAA060090ABJA Gas Furnace

The flame sensor confirms that your Carrier PG8JAA060090ABJA furnace has established a real flame before the control board allows the gas valve to stay open. Using flame rectification, the rod sits directly in the burner flame and passes a small microamp current back to the board; that current is the only proof the system has that gas is actually burning rather than just flowing. As the rod accumulates oxide and silica scale, the signal weakens until the board can no longer detect flame. The hallmark symptom is short-cycling — burners light for a few seconds and drop out, retry, and eventually lock the furnace out, leaving you with intermittent no-heat and a recurring fault flash. This single-rod sensor uses a high-temperature Kanthal element on a crack-resistant ceramic insulator built for constant flame immersion. A good sensor reads about 1.5 to 6 microamps of flame current on a meter wired in series; the board typically drops the flame below roughly 0.7 µA. The insulator's resistance to carbon tracking is what prevents nuisance dropouts on humid starts. Why OEM matters: aftermarket sensors commonly use thinner rods and cheaper ceramic that scale up and crack quickly, sending you right back to short-cycling. OEM rod length and bend also seat the tip correctly in the Carrier burner flame for a strong, stable signal. Install difficulty: 1 of 5. Tools: 1/4" nut driver and a fine abrasive pad to clean the burner area. SAFETY: turn off the furnace gas valve and kill power at the breaker before removing the sensor — do not service with the burners lit. 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 PG8JAA060090ABJA. 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.