The water inlet valve is an electrically operated valve that opens to allow water into the ice maker and water dispenser. When this valve fails, it can disrupt the entire water and ice system, leading to a lack of water or ice production.
Signals
Common signals of a faulty water inlet valve include no water from the dispenser, the ice maker not filling with water, a humming sound without water flow, or the water dispenser running continuously (indicating the valve is stuck open).
Solutions
Check the household water pressure, as the valve requires at least 20 psi to open properly. Low water pressure is a common cause of valve failure. Inspect the water supply line for kinks, freezes, or blockages that may prevent water from reaching the valve. Test the valve solenoid using a multimeter to check for continuity across its terminals; if there is no continuity, the solenoid has failed and the valve must be replaced. To replace the inlet valve, shut off the water supply, disconnect the line, and swap the valve with a new one. If the valve is stuck open, it will also require replacement to prevent continuous water flow.
Prevention Tips
To prevent water inlet valve issues, ensure the household water pressure is within the recommended range (20–120 psi). Regularly inspect the water supply line for kinks, freezes, or damage. Replace the water filter as recommended to prevent clogs that could strain the valve. Periodically test the valve and its solenoid for proper operation.