Machine will not fill; cycle will not start and display shows E1 shortly after start.

Safety first: Turn off the dishwasher’s power at the breaker and close the incoming water shutoff valve before working on the machine.

• Check water supply: Verify the building’s hot water shutoff feeding the Insinger dishwasher is fully open. Confirm there is adequate water pressure at the supply line.
• Inspect inlet hose and screen: Remove the supply hose from the dishwasher’s water inlet solenoid valve. Check the mesh screen inside the valve body for debris or scale; clean with a soft brush and reinstall.
• Test the water inlet solenoid valve: With power off, disconnect the wires from the valve and measure coil resistance with a multimeter. An open coil (infinite resistance) indicates a failed valve that must be replaced.
• Check water level / pressure switch: Locate the water level or pressure switch assembly and inspect the small pressure hose for kinks, cracks, or blockages. Clear any debris and ensure the hose is firmly attached.
• Run a test cycle: Restore power and water, then start a short cycle to confirm that the machine fills within the normal time and the E1 code clears.