Jackson dishwasher displays E18 indicating a door lock or latch error on models with powered door locks.

Safety first: Disconnect power. Do not force the door open if the lock is engaged; damage may result.

• Inspect latch and striker: Examine the door latch hook and frame-mounted striker for wear, bending, or misalignment. Adjust or replace as needed so the latch engages smoothly.
• Check lock actuator: Locate the door lock solenoid or motor. Test for proper movement when energized (qualified personnel only). If it does not move or is noisy, replace the actuator.
• Test lock position switch: Use a multimeter to verify that the lock position switch changes state when the lock engages and disengages. Replace if intermittent or stuck.
• Lubricate moving parts: Apply a small amount of food-safe lubricant to latch pivots if they are stiff (avoid overspray).

After repair, confirm that the machine will not start unless the door is fully locked and that E18 no longer appears.