Asko Dishwasher Error F18

DIY Fix General first-steps for unexplained error codes

1. Power off the dishwasher and disconnect from mains for at least 2 minutes, then reconnect — this can clear transient errors in some models.
2. Check that the door is fully closed and latched, as some codes can result from communication or latch issues.
3. Inspect for obvious issues (water leaks under unit, blocked filters, visible hose kinks) that can trigger protective shutdowns.
4. Refer to your specific model’s official user manual for error code definitions specific to that model.

Technician Only Service technician diagnosis

1. Access the dishwasher’s service menu to read stored fault logs, which may give additional context around F18 conditions.
2. Perform electrical checks of door latch switch, control board communications, and basic sensors using a multimeter.
3. Inspect door seals and interlock assemblies for wear or misalignment if water ingress is observed.
4. If available, consult the official Asko technical service manual for model-specific fault code definitions.

Parts needed: Multimeter for diagnostics, Door latch/door lock assembly (if found faulty), Control board (if communications faults evident)