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The Goodman 10690402S interlock (blower-door) safety switch is a genuine OEM component for the AMVC961005CNBA gas furnace. This normally-open switch de-energizes the furnace whenever the blower access panel is removed, preventing the burners and blower from operating with the cabinet open. It is a required UL safety device on all modern high-efficiency furnaces.
A worn, stuck, or misaligned door switch is a frequent cause of a completely dead furnace — no ignition, no blower, no response — because the control board never sees a closed door circuit.
The OEM 10690402S matches the furnace's exact plunger travel, bracket, and terminal spacing so the door reliably closes the circuit. Generic switches may sit at the wrong depth, leaving the furnace dead or the safety defeated. OEM ensures dependable, code-correct operation.
Cut power, remove the blower panel, unclip the two spade terminals, unscrew the switch bracket, and install the replacement in the same position. Verify the plunger depresses fully when the door is seated. About 10–15 minutes.