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This genuine OEM flame sensor is a direct replacement for the Goodman/Amana AMVC801005CXAB furnace and many compatible Goodman, Amana, and Daikin gas models. The flame sensor uses flame-rectification to prove that a flame is present after ignition; if the control board doesn't detect a healthy microamp signal, it shuts off the gas valve to prevent unburned gas from accumulating. A dirty or failing sensor is one of the most common causes of a furnace that lights briefly then shuts off (short cycling) or locks out.
Generic flame rods may use different rod alloys or mounting geometry that produce a weak or unstable microamp signal. This genuine OEM sensor delivers the correct signal strength and bolt-pattern fit, restoring reliable flame proving without nuisance lockouts.
Easy (1/5). Shut off power, remove one mounting screw and the wire connector, install the new sensor, and reconnect. No gas disconnection required — one of the simplest furnace repairs.