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The 10690402S is a genuine OEM blower-door interlock switch for Goodman and Amana gas furnaces, including the AMES960804CNAA. This normally-open safety switch cuts 120V power to the furnace whenever the blower access panel is removed, protecting service technicians and preventing operation with the door off. A stuck or broken switch is a common cause of a completely dead furnace after a filter change or service call.
The OEM switch is dimensioned so the door plunger engages at the correct depth. Generic substitutes often sit too shallow or deep, leaving the furnace dead even with the panel installed. The genuine 10690402S guarantees proper actuation.
Easy (1/5). Disconnect power, unclip the switch from its bracket, move the two wires, and snap the new switch in. Confirm the panel depresses the plunger fully.