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The 10690402S is the OEM blower-compartment interlock (door) safety switch for the Goodman/Amana AMVS960805CUAA modulating gas furnace and many compatible Goodman, Amana, and Daikin models. This normally-open switch de-energizes the furnace whenever the blower access panel is removed, protecting technicians and homeowners from live electrical and rotating blower components. A furnace that will not start after service is very often traced back to a failed or improperly seated door switch.
The genuine OEM 10690402S guarantees exact plunger travel, mounting-tab alignment, and contact rating for your furnace. Universal door switches can work but often require bracket modification and may not sit flush, causing intermittent no-heat faults. For a critical safety component, OEM is the recommended choice.
Easy (1/5). Shut off power at the disconnect, remove the blower panel, unplug the two spade terminals, unclip the old switch, and snap the new one into place. Typically a 10-minute repair with basic hand tools. Always confirm power is off before servicing.