Whirlpool refrigerator ice maker shows F3 and no water enters the mold

Safety: Turn off power and shut off the water supply before disconnecting lines.

• Check water dispenser: If the refrigerator has a dispenser, test it. Weak or no flow suggests a supply or filter issue.
• Inspect fill tube: Look at the plastic tube that feeds water into the ice maker. If it is frozen, thaw it with a hair dryer on low, keeping the heat moving to avoid melting plastic.
• Replace water filter: If the filter is old or clogged, replace it with a Whirlpool-approved filter and flush several gallons of water.
• Test inlet valve: Access the rear of the refrigerator and locate the dual or triple water inlet valve. Use a multimeter to check coil resistance and a test cord or diagnostic mode to energize the ice maker solenoid. Replace the valve if it does not open or is electrically open.
• Restore and test: Turn water and power back on, then wait several hours for the ice maker to cycle. If F3 returns, further diagnosis of the control board may be needed.