IceKing ice maker shows E15; unit may beep and stop with ice stuck on the evaporator plate.

Safety first: Unplug the unit before accessing the refrigeration components. Do not open sealed refrigerant lines.

Step-by-step checks:

• 1. Observe harvest behavior: During harvest, the ice should release cleanly from the evaporator. If it remains stuck, the hot gas or defrost function may not be working.
• 2. Check condenser fan and compressor: Ensure both are operating normally; poor refrigeration can affect harvest.
• 3. Locate hot gas valve: The hot gas solenoid valve is typically mounted near the compressor with tubing leading to the evaporator.
• 4. Listen for valve activation: During harvest (with power on), you may hear a click from the valve. Lack of activation could indicate a control or coil issue.
• 5. Inspect wiring: Verify the solenoid coil wiring is intact and connected.

Important: Diagnosis of hot gas valves and sealed-system components requires gauges and refrigeration expertise. Do not attempt to replace or open refrigerant lines yourself.

When to call a technician: E15 typically requires a certified refrigeration technician to test the hot gas valve, sensors, and control outputs.