Ice maker runs but produces no ice at all

Safety: Unplug the unit before removing panels. Do not attempt to open the sealed refrigeration system yourself.

Diagnostic steps:

• Check water: Confirm the reservoir is filled to the MAX line and that the drain plug is fully closed. Use room-temperature water.
• Listen for components: Plug in and start a cycle. After a few minutes, you should hear the compressor humming and feel slight vibration at the back. You should also hear the water pump circulating water.
• Check evaporator temperature: After 5–10 minutes of running, carefully touch the evaporator plate/fingers inside (briefly, with dry fingers). It should feel very cold or start to frost. If it remains at room temperature, the refrigeration system is not working.
• Clean condenser: Unplug the unit, remove the rear panel, and clean dust from the condenser coil and fan with a soft brush and vacuum. Ensure the fan spins freely.
• Verify fan operation: Reassemble, plug in, and confirm the rear fan runs when the compressor is on. If the fan is not running, the unit can overheat and stop cooling.
• When to call a technician: If the compressor runs but the evaporator does not get cold, or if there is oily residue on tubing (sign of refrigerant leak), the sealed system likely has a fault. This requires a refrigeration technician and may not be economical to repair on small countertop units.