Fixing a broken washing machine door lock requires replacing the faulty switch assembly as a direct component swap. First, unplug the power cord from the wall outlet to eliminate electrical shock hazards. Second, on front-load models, pry off the outer wire spring clamp holding the flexible rubber door boot seal, peel the rubber back, remove the two mounting screws securing the lock switch behind the front panel, and unplug the wiring harness. Third, plug the harness into the new replacement lock and secure it. You can troubleshoot switch continuity safely using a multimeter. You can verify that your repair is successful when reattaching the boot seal, plugging the unit in, and closing the door causes the lock to engage and start a cycle normally.
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