Dishwasher displays iA0; often related to spray arm or loading issues.

Safety first: Turn off power before removing spray arms or working inside the tub.

• Check loading: Ensure tall items are not blocking the rotation of the lower, middle, or upper spray arms. Reposition dishes so arms can spin freely.
• Clean spray arms: Remove the spray arms by unscrewing or unclipping them. Rinse under running water and use a toothpick to clear clogged jets.
• Clean filters and sump: Remove and clean the filters. Check the sump for food debris that could reduce pump pressure.
• Test rotation: Manually spin each spray arm to confirm smooth movement. Reinstall and run a short cycle to verify operation.
• Further diagnosis: If iA0 persists and arms are clear, the circulation pump may be weak and require testing or replacement.