Dishwasher will not fill with water; cycle starts then quickly stops and displays E1.

Safety first: Unplug the dishwasher or switch off the circuit breaker, and turn off the water supply before working on the unit.

• Check household water supply: Verify the shutoff valve (usually under the sink) feeding the Summit dishwasher is fully open. Confirm other faucets have normal pressure.
• Inspect inlet hose and valve: Pull the dishwasher forward enough to access the water inlet connection. Turn off water, disconnect the inlet hose, and check the small screen filter inside the water inlet valve for debris. Clean with a soft brush and reinstall.
• Check for kinks: Ensure the stainless or braided inlet hose is not kinked or crushed behind the unit.
• Test the water inlet valve: With power off, remove the kick plate and locate the water inlet valve assembly. Inspect wiring connectors. Using a multimeter, test the valve coil for continuity; an open coil indicates a bad valve that must be replaced.
• Flow sensor / pressure switch (if present): Some Summit models use a small flow meter or water level pressure switch on the side of the sump. Check for loose wiring and blockages in the small pressure hose. Replace the sensor if it is physically damaged or tests open.
• Reset and test: Restore power and water, then run a quick cycle to confirm the error is cleared.