Haier ice maker displays H2 and shuts down or produces very small/thin ice.

Safety first: Turn off water supply before disconnecting any hoses. Unplug the unit before internal inspection.

Steps to correct:

• Check shutoff valve: Confirm the water supply valve is fully open.
• Inspect supply line: Look for kinks, sharp bends, or restrictions in the water line. Replace with a properly sized line if needed.
• Clean inlet screen: Disconnect the supply line at the ice maker’s inlet valve and clean the mesh filter screen of sediment.
• Verify water pressure: Haier typically requires at least 20–40 psi. If pressure is low, consult a plumber.
• Reset and test: Reconnect everything, restore water and power, and run a cycle to see if H2 clears.

When to call a technician: If water flow is normal but H2 persists, the flow sensor or control board may be faulty and require professional diagnosis.