Safety first: Disconnect power and close water supply. Relieve pressure before opening any pressurized lines.

Locate the flow/pressure switch: Identify the switch in the rinse or wash line per the service manual. It may be a paddle-type or diaphragm-type device.
Inspect for debris: Remove the switch and check for scale, plastic, or food particles preventing proper movement. Clean the internal passages.
Test switch operation: Use a multimeter to verify continuity changes when air or water pressure is applied (for pressure switches) or when the paddle is moved (for flow switches).
Check wiring: Inspect the harness from the switch to the control board for breaks or loose terminals. Repair as needed.
Replace faulty switch: If the switch does not operate correctly after cleaning, install a new Jackson-specified flow or pressure switch.

Proper flow detection is essential for ensuring adequate rinse and wash performance; verify normal operation after repair.

Jackson dishwasher displays E16 indicating a flow switch or pressure switch fault in the rinse or wash circuit.

Possible Causes