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Restore reliable ignition to your Goodman/Amana AMH81155CXAA 80% AFUE gas furnace with this OEM flame sensor. The flame sensor (flame rod) confirms that a flame is actually present after the igniter fires, sending a microamp signal to the control board so the gas valve stays open. A weak, oxidized, or cracked sensor is the #1 cause of furnaces that light briefly and then shut down on lockout. This is the exact factory-specified part — no cross-referencing or guesswork.
This OEM sensor uses the correct rod length, alloy, and insulator rating for a stable flame signal and long service life. Generic universal sensors often require bending or shimming and can drift out of spec, causing intermittent lockouts. For a furnace that heats a whole home, OEM reliability is worth the small premium.
Easy (1/5). Kill power at the breaker, remove one mounting screw and the spade connector, swap in the new sensor, and reconnect. Most homeowners complete this in under 10 minutes. Cleaning the burner area while you're in there is recommended.