Display shows E5, unit may fill with water but does not freeze properly or stops cycle.

Safety: Unplug the ice maker and close the water supply valve before disconnecting any water lines.

Water supply checks:

• Verify water is on: Confirm the shutoff valve feeding the Summit ice maker is fully open.
• Check water pressure: The unit typically needs at least 20–40 psi. If other fixtures in the home have low pressure, address plumbing issues first.
• Inspect inlet hose: Look for kinks or sharp bends in the water line to the ice maker. Straighten or replace as needed.

Valve and sensor:

• Access the water inlet valve: Usually located at the rear bottom of the unit where the water line connects.
• Clean the inlet screen: Disconnect the water line, remove the small mesh screen from the valve inlet, and rinse debris under running water.
• Test the valve coil: With a multimeter, measure resistance across the valve terminals. An open circuit indicates a bad coil. Replace the water inlet valve assembly if defective.
• Check water level sensor or float: Some Summit models use a float switch or water level sensor in the reservoir. Clean any scale or slime and ensure it moves freely and is properly connected.

After service: Reconnect water, restore power, and run a test cycle to confirm E5 is cleared and water fills correctly.