a faulty washing machine door lock switch with a directfit part compatible with Samsung models using the listed part numbers. This switch restores the safety interlock that keeps the door locked during wash and spin cycles and signals the control board so the machine can operate normally. Key benefits Restores machine operation: fixes issues where the washer will not start, stops midcycle, or displays a door lock error. Improves safety: reestablishes the door lock interlock so the door remains secure during operation. Costeffective : a single part instead of replacing the whole door assembly or paying for a complex service call. Straightforward replacement: designed to match the original switch's mounting and electrical connections so it fits the machines that use these part numbers. Features and attributes Function: Washing machine door lock switch / door interlock assembly. Compatibility: Compatible with Samsung part numbers DC3400025E, DC3400025A, DC3400025C and 4546106 (as shown). Intended as a replacement for machines that reference these part numbers. Fit: Directreplacement design sized to match the original component in machines that use the listed numbers (as shown). Performance: Restores door locking, electrical signaling to the control board, and normal start/operation behavior for compatible Samsung washing machines. Included: Replacement door lock switch, sold as shown. Applications / use cases Home : A homeowner whose Samsung washer displays a door lock error or will not begin the cycle can this switch to restore normal operation. Maintenance by technicians: Appliance service technicians can use this switch as a spare part when diagnosing doorlockrelated faults on Samsung washers that list the compatible part numbers. Preventive replacement: a worn or intermittently failing door lock switch to prevent unexpected stops or safety lock failures during wash cycles. Installation notes Intended to the original switch in machines that use the listed Samsung part numbers. Confirm your machine's part number or consult the appliance manual before ordering. Basic appliance experience is recommended. Turn off power and disconnect the appliance before attempting replacement. Matches the mounting points and electrical connector style used on machines that reference these part numbers (as shown). Compatibility reminder Designed specifically for Samsung washing machines that use part numbers DC3400025E, DC3400025A, DC3400025C and 4546106. Verify your model or parts list to ensure correct fit. What you get One replacement washing machine door lock switch, as shown, compatible with the Samsung part numbers listed above.