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The Goodman 10690402S is a genuine OEM blower-door interlock switch for the AMEC960403ANAA furnace and compatible Goodman/Amana models. This safety switch removes power from the furnace whenever the blower access panel is opened, protecting service techs and preventing operation with the door off. A stuck or failed door switch is a common cause of a completely dead furnace.
The OEM switch matches the factory plunger travel, bracket footprint, and terminal layout for a true plug-and-play fit. Generic universal door switches exist but often require bracket modification or lead splicing; the OEM part is the fastest, most reliable repair.
Easy (2/5). Cut power at the breaker, disconnect the two wires, unclip or unscrew the switch from its bracket, and install the replacement. Roughly 15 minutes with a screwdriver and nut driver.