Dishwasher displays C4; unit may stop mid-cycle and drain, or may not fill properly.

Safety first: Turn off power at the breaker before accessing internal components. Turn off the water supply under the sink.

• Verify water supply: Confirm the shutoff valve under the sink is fully open. If it is a saddle valve, consider replacing it with a full-port valve for better flow.
• Inspect fill hose: Look under the sink and behind the dishwasher for kinks or sharp bends in the braided or copper supply line. Straighten or reroute as needed.
• Clean inlet valve screen: Remove the toe-kick panel. Locate the water inlet valve where the supply line connects. Turn off water, disconnect the supply line, and inspect the valve's inlet screen for sediment. Clean gently with a small brush and rinse.
• Check fill level: Restore water and power. Start a cycle and let the dishwasher fill. After filling stops, open the door: water should cover the sump area and be just below the bottom of the door opening. If water level is low, the inlet valve may be weak.
• Replace inlet valve if needed: If the valve hums but does not allow enough water, or if the coil tests open with a multimeter, replace the GE Café water inlet valve assembly.