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The 10690402S is a genuine OEM interlock (blower door) safety switch engineered for the Goodman/Amana AMES960403BUAB gas furnace and compatible 96% AFUE models. This switch de-energizes the furnace whenever the blower access panel is removed, protecting technicians and homeowners from energized components and rotating parts. A worn or failed door switch is a common cause of a furnace that will not start with the panel on.
The genuine Goodman 10690402S is dimensionally exact and rated to the original switch's electrical spec, ensuring reliable make/break action and proper safety interlock. Aftermarket door switches may vary in plunger travel or terminal orientation, risking nuisance no-heat calls. For a critical safety component, OEM is the recommended choice.
Easy (1 of 5). Cut power at the disconnect, remove the blower panel, unplug the two terminals, unclip or unscrew the switch, and reverse. Typically 10–15 minutes with basic hand tools.