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The Goodman 10690402S interlock door switch is a genuine OEM safety component for AMEC960603ANAB furnaces and compatible Goodman/Amana models. This blower-door interlock automatically de-energizes the furnace whenever the access panel is removed, preventing the unit from running with an open cabinet and protecting technicians and homeowners from moving and electrical hazards.
This OEM switch matches the factory plunger travel, mounting bracket, and contact rating so the door depresses it correctly on close. Generic substitutes often have the wrong actuation depth, leaving the furnace dead even with the panel installed. OEM guarantees reliable make/break action.
Difficulty: Easy (2/5). Disconnect power, unclip the old switch from its mounting slot, transfer the spade connectors, and snap the new switch in place. Verify the door plunger fully depresses the switch on close.