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The Goodman 10690402S Interlock Door Switch is a genuine OEM blower-compartment safety switch built for the Amana/Goodman AMSS960603BNAA 96% AFUE gas furnace and compatible models. This normally-open door switch cuts power to the blower and control circuit whenever the access panel is removed, protecting the technician and satisfying the furnace's built-in safety interlock. A worn or stuck switch is a common cause of a furnace that won't start until the panel is pressed firmly into place.
OEM vs. Generic: The genuine OEM 10690402S matches the factory actuator height, contact rating, and mounting bracket exactly, so the panel closes the circuit reliably. Generic universal switches often require bending the bracket or shimming the panel to make contact, and cheaper contacts can burn out under repeated cycling. For a safety-critical interlock we recommend the OEM part.
Install difficulty: Easy (1/5). Cut power at the breaker, remove the blower door, unplug the two spade terminals, unscrew the switch, and reverse for the new one. Typically a 10-minute repair with a screwdriver.