Order before 3PM CST — ships same day.
Standard delivery 2-5 business days. Express options at checkout.
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This OEM Carrier flame sensor keeps the GB1AAV036065AGJA gas furnace lighting reliably cycle after cycle. Using flame rectification, the sensor confirms that the burners have ignited; if it fails to detect a flame within seconds, the control board closes the gas valve as a safety measure. Carbon buildup and oxidation on the sensing rod gradually weaken the microamp signal, leading to a furnace that lights briefly then shuts down, or short-cycles repeatedly through a heating call. A new flame sensor provides a clean, strong signal so the system completes full cycles without nuisance lockouts. Manufactured to factory specifications, it matches the GB1AAV036065AGJA mounting bracket and wire connector exactly. Installation is an easy beginner-level job: turn off power and gas, remove a single mounting screw, disconnect the wire, and install the new sensor. Most homeowners finish in about 10 minutes. This is one of the most affordable and frequently overlooked fixes for intermittent no-heat problems. Ships same-day when you order before 3PM CST to get heat back fast.
This part is compatible with Carrier model GB1AAV036065AGJA.
Same-day shipping before 3 PM CST. 30-day returns on uninstalled parts.