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The genuine Goodman 10690402S Interlock Door Switch is an OEM blower-compartment safety switch for the Goodman ACVC961005CNBA 96% AFUE gas furnace. This plunger-style interlock cuts power to the furnace whenever the blower access panel is removed, so the unit cannot run with the door open. A failed or stuck switch is a frequent reason a furnace appears completely dead with no lights on the control board.
This OEM switch matches the original plunger length and mounting tab so the blower door depresses it correctly. Universal door switches often need bending or shimming and can fail to make contact, leaving the furnace dead. The factory part installs cleanly with no fitment guesswork.
Easy (DIY-friendly) — One or two screws and two wire terminals. Disconnect power, swap the switch, and confirm the door depresses the plunger fully. About 10–15 minutes.