Jackson dishwasher displays E10 indicating a communication error between the main control board and a peripheral module (e.g., booster or display).

Safety first: Disconnect power before opening any control panels. Sensitive electronics can be damaged by static—use ESD precautions.

• Inspect connectors: Open the main control box and any booster or display modules. Reseat all low-voltage harness connectors, ensuring they are fully latched and free of corrosion.
• Check communication cable: Follow the communication cable (often multi-conductor or shielded) between boards. Look for pinched, cut, or burned sections. Replace damaged cables.
• Verify grounding: Ensure the dishwasher and booster are properly grounded. Poor grounding can cause communication noise and errors.
• Power cycle the system: After reseating connectors, restore power and allow the control to reboot. Clear the error if possible and observe operation.
• Module substitution: If available, substitute a known-good display or booster control module to isolate which board is faulty.

Because control electronics are expensive and model-specific, consult Jackson technical support or a factory-authorized technician before replacing boards.