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The Goodman 10690402S Interlock Door Safety Switch is a genuine OEM replacement for the AMEC961005CNAC gas furnace and other compatible Goodman/Amana models. This normally-open safety switch de-energizes the blower and burner circuits the moment the blower access panel is removed, protecting the technician and preventing the furnace from operating with the door off. A failed or stuck door switch is a common cause of a furnace that won't start, so replacing it with the correct OEM part restores reliable, code-compliant operation.
This is a true OEM Goodman switch, built to the exact actuator travel, mounting footprint, and contact rating specified for your furnace. Generic universal switches may fit mechanically but often differ in actuation depth, leading to intermittent contact and nuisance shutdowns. For a safety-critical component like a door interlock, we recommend the OEM part.
Easy (1/5). Turn off power at the disconnect, remove the blower panel, unplug the two spade terminals, unscrew the old switch, and mount the new one in the same bracket. Typically a 10–15 minute job with a screwdriver. If you are not comfortable working near line-voltage wiring, contact a qualified HVAC technician.