Ice maker not producing any ice at all; unit has power but bin remains empty.

Safety: Disconnect power and shut off water before removing panels or hoses.

Diagnostic steps:

• 1. Confirm power and controls: Verify the ice maker is switched on and not in a cleaning or off mode. Check that any control lock is disabled.
• 2. Check water supply: Ensure the shutoff valve is open and the supply line is not kinked. Loosen the line at the inlet valve briefly (with water off first) to confirm water flow.
• 3. Listen for operation: During a cycle, listen for the inlet valve filling, the circulation pump running, and the compressor starting. Absence of these sounds helps narrow the fault.
• 4. Inspect for error codes: Some Sub-Zero ice makers store service codes even if not displayed continuously. Refer to the tech sheet for button sequences to retrieve stored codes.
• 5. User-level actions: Clean the condenser coil, verify ambient temperature is within spec, and run a cleaning cycle to remove scale that may block water flow.
• 6. When to call a technician: If the unit has power and water but does not cool (no frost on evaporator) or does not start the compressor, a sealed system or control issue is likely and requires professional service.