Wash arms do not rotate; heavy soil remains on dishes despite hot water, no error code.

Safety: Disconnect power and let the machine cool.

• Clean wash arms: Remove wash arms and clear all jets. Descale if necessary.
• Inspect hubs and bearings: Ensure the arms spin freely on their mounts; replace worn bushings.
• Check pump and sump: Inspect for debris restricting flow to the arms.
• Correct loading: Ensure racks are properly seated and not interfering with arm rotation.