Dishwasher displays E8 and may stop during wash; spray arms may not rotate properly and cleaning is poor.

Safety first: Disconnect power and turn off water before pulling the dishwasher out.

• Confirm poor circulation: Start a cycle, listen for the wash motor. If you only hear filling and then a low hum or nothing, the circulation pump may be faulty.
• Check for blockages: Remove filters and inspect the sump for foreign objects that could jam the impeller. Some Sharp models allow limited access to the impeller from inside the tub.
• Access the pump: Lay the dishwasher on its back and remove the base cover. Locate the circulation pump attached to the sump assembly.
• Inspect and rotate impeller: Disconnect the pump and check if the impeller turns freely by hand. If seized or very stiff, the pump must be replaced.
• Replacement: Install a new Sharp circulation pump/wash motor assembly, ensuring all seals and clamps are correctly fitted to prevent leaks.