Ice maker runs but does not produce any ice; evaporator plate does not frost.

Safety first: Disconnect power before removing covers. Do not attempt to open the sealed refrigeration system unless you are a certified technician.

Basic checks:

• Check ambient conditions: Ensure the SMEG ice maker is installed in a room within the specified temperature range (typically 10–38°C). Extreme ambient temperatures can prevent ice formation.
• Inspect condenser coil: Remove the lower front or rear grille and vacuum dust from the condenser coil. A clogged condenser can reduce cooling performance.
• Verify fan operation: Confirm that the condenser fan and internal circulation fan are running when the unit is in ice-making mode. Replace the fan motor if it does not run when powered.
• Check evaporator plate temperature: After 10–15 minutes of operation, carefully touch near (not directly on) the evaporator plate. It should be very cold and starting to frost. If it remains warm, suspect a sealed system issue or a faulty thermistor.
• Test evaporator thermistor: Access the thermistor clipped to or near the evaporator plate. Disconnect it and measure resistance at room temperature; compare to SMEG specifications. Replace the thermistor if readings are out of range or unstable.

Sealed system note: If the compressor runs continuously, fans operate, but the evaporator never frosts, the unit likely has a refrigerant or compressor problem. This requires specialized tools and should be handled by an authorized SMEG refrigeration technician.