Samsung Dishwasher Door Latch/Lock Assembly Replacement

Samsung Dishwasher Door Latch/Lock Assembly Replacement — What This Part Does

The door latch/lock assembly is the mechanical and electrical interlock that confirms the door is fully closed and locked before operation. When the door is shut, the latch engages the strike and the internal switch signals the control board that it’s safe to start or continue a wash cycle. This assembly fails when the internal switch mechanism breaks, the latch body cracks, or the electrical contacts wear out. Samsung also points to latch misalignment, rack interference, and improper leveling as common reasons the latch won’t engage, even when the part itself is intact.

Jump to Replacement Steps

Signs It Needs Replacing

• Dishwasher won’t start when door is closed The control panel lights up but the cycle will not begin because the latch switch is not signaling a closed door.
• Cycle stops mid-wash and shows door error The machine stops running and may beep or display a door-related fault code because the switch lost continuity.
• Door won’t latch or pops open The latch mechanism is broken or out of position so the door will not catch when you push it shut.
• Latch feels loose or rattles The latch body or internal spring has failed and the assembly moves freely instead of holding tension.
• Door closes but machine still won’t run The latch engages mechanically but the switch inside is faulty and does not send a closed-door signal to the board.
• Door requires excessive force to close Misalignment or a bent latch strikes the frame incorrectly, making closure difficult even though the part may still function electrically.

How to Replace It

1. Disconnect power at the breaker or unplug the dishwasher from the wall outlet.
2. Open the door and remove all screws around the perimeter of the inner door panel, then carefully separate the inner panel from the outer door shell to expose the latch assembly.
3. Locate the door latch/lock assembly mounted on the inner door panel or door frame and disconnect the wiring harness plug from the back of the assembly.
4. Release the retaining tabs or remove the mounting screws that hold the latch/lock assembly in place, then pull the old assembly out of its bracket.
5. Position the new latch/lock assembly into the mounting bracket, press or screw it into place, and reconnect the wiring harness plug.
6. Align the inner door panel with the outer door shell and reinstall all perimeter screws in their original locations, making sure the latch is seated correctly and not shifted.
7. Restore power and close the door to verify the latch engages smoothly and the control board recognizes the door as closed.
8. Start a short test cycle to confirm the dishwasher begins and completes without door-related errors.

The Part You Need

Related Error Codes

If this part is failing you may also see one of these codes:

• Samsung Dishwasher 3C error code
• Samsung Dishwasher 3E error code
• Samsung Dishwasher 4C error code
• Samsung Dishwasher 5C error code
• Samsung Dishwasher 9E error code
• Samsung Dishwasher Ap error code
• Samsung Dishwasher Be error code
• Samsung Dishwasher Ce error code
• Samsung Dishwasher Hc error code
• Samsung Dishwasher He error code

When to Call a Pro

Before replacing the latch assembly, verify that racks are fully pushed in, no dishes block the door, and the dishwasher is leveled front-to-back and side-to-side. Samsung lists these as the most common reasons for door-latch complaints. If you’ve checked loading and leveling and the latch still fails, the replacement is straightforward for a confident DIYer. Call a pro if you’re uncomfortable separating the inner and outer door panels, if wiring inside the door appears damaged or melted, or if the new assembly does not resolve the fault and further board-level diagnostics are needed.