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The Goodman 10690402S Interlock Door Switch is the OEM blower-compartment safety switch for the Goodman VCES960603BNAA furnace. This normally-open plunger switch cuts all power to the furnace whenever the blower access door is removed and restores it when the door is properly seated — a required safety interlock. A stuck or broken door switch is a common reason a furnace appears completely dead.
The OEM 10690402S provides the exact plunger throw and bracket alignment so the door reliably actuates the switch. The generic equivalent matches the switch action and mount at a lower price and is a quick fix for a no-power furnace. Both are UL-rated safety switches.
Easy (1/5). Shut off power, remove the single mounting screw, transfer the two wire leads, and reinstall so the door depresses the plunger. Under 15 minutes. Confirm the furnace powers up only with the door closed.