Jackson dishwasher leaves dishes dirty or with heavy food residue after a complete cycle.

Safety first: Disconnect power before removing spray arms or accessing internal components.

• Clean spray arms and filters: Remove upper and lower spray arms and clear all jets. Clean tank strainers and scrap baskets to ensure good flow.
• Verify detergent concentration: Check that the detergent pump is operating and that the chemical supplier’s settings meet Jackson’s recommended concentration. Adjust dosing if necessary.
• Check wash temperature: Confirm that the wash tank reaches the specified temperature (often 150–160°F). If low, troubleshoot the tank heater and thermostat.
• Inspect wash pump performance: Listen for cavitation or unusual noise. Check for obstructions at the pump inlet and ensure the pump impeller is intact.
• Pre-scrap dishes: Ensure operators are scraping heavy soil before loading, as Jackson commercial machines are designed for pre-scrapped ware.

Document any changes made and re-test with a full rack to confirm improved cleaning.