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The Goodman 10690402S is a genuine OEM interlock (blower-door) safety switch built for the AMSS960804CNAA gas furnace and other compatible Goodman/Amana models. This normally-open switch de-energizes the blower and control circuit the moment the front access panel is removed, protecting technicians and homeowners during service. A worn or stuck interlock switch is a common cause of a furnace that won't start or that runs only when the door is pressed by hand.
Our OEM option is the exact Goodman-specified switch for guaranteed contact rating, mounting alignment, and code-compliant safety operation. The Generic equivalent meets the same electrical spec at a lower price and is a solid budget choice, but the OEM part is recommended for any safety-critical interlock circuit.
Easy (1/5). Cut power at the breaker, remove the old switch bracket, transfer the two spade connectors, and re-mount. Typical time: 10–15 minutes with basic hand tools.