Order before 3PM CST — ships same day.
Standard delivery 2-5 business days. Express options at checkout.
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This genuine OEM Carrier flame sensor confirms the presence of a burner flame on your GB1AAV024045ACJA furnace, providing the essential safety feedback that allows the gas valve to stay open during the heating cycle. Through flame rectification, it sends a small microamp current to the control board; if flame is not detected, the board closes the gas valve within seconds to prevent unburned gas from accumulating. Over time the sensor's metal rod becomes coated or corroded, weakening the signal and causing the furnace to ignite then quickly shut down. Built to exact factory specifications, this sensor fits the GB1AAV024045ACJA precisely for accurate, dependable flame detection. Installation is easy: turn off power and gas, remove the mounting screw, unplug the wire, install the new sensor, and reconnect. Most homeowners finish in 10 to 15 minutes. Stop the frustrating light-then-quit cycling and restore safe, reliable heat with a part engineered for your Carrier furnace. In stock and ships same-day when you order before 3PM CST.
This part is compatible with Carrier model GB1AAV024045ACJA.
Same-day shipping before 3 PM CST. 30-day returns on uninstalled parts.