OEM Guaranteed
Same-Day Ship
30-Day Returns
Secure Checkout
This OEM flame sensor is the factory-specified replacement for the Carrier GB3AAV036070ADJA gas furnace. The flame sensor is a safety rod that detects the presence of a burner flame by passing a small microamp current through the flame to ground. When the sensor becomes coated with oxidation or fails entirely, the control board cannot confirm ignition and will shut the gas valve off — typically 5 to 8 seconds after the burner lights — triggering a lockout fault code. Replacing the flame sensor with this OEM unit restores reliable flame detection and prevents nuisance shutdowns.
Compatibility: Designed for the Carrier GB3AAV036070ADJA gas furnace. Verify OEM part number LH680014 against your unit's service label before ordering. If you are unsure of fitment, our HVAC parts team is available to confirm compatibility before you buy — orders placed before 3 PM ship the same business day.