Princess ice maker shows E4; ice basket remains empty; unit may fill with water but no ice is harvested.
Safety Warning
This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.
If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.
Possible Causes
How to Fix / Troubleshooting
Warning: The refrigeration circuit is sealed and contains refrigerant. Do not attempt to open or recharge the system yourself. Always unplug the unit before any inspection.
User-level checks:
- 1. Confirm ambient conditions: Use the ice maker in a room between about 10–32°C. Very high ambient temperatures reduce cooling capacity and can trigger E4.
- 2. Ensure proper ventilation: Provide adequate space around the unit and keep vents clear to avoid overheating.
- 3. Check for heavy frost or ice buildup: Remove the top cover and inspect the evaporator plate. If it is heavily iced over, power off the unit and allow it to fully defrost for several hours, then restart.
- 4. Listen to compressor: When starting a cycle, verify that the compressor runs with a steady hum. If it repeatedly tries to start and clicks off, the compressor or start components may be failing.
When to call a technician: If E4 persists after defrosting and ensuring good ventilation, the problem is likely within the sealed refrigeration system (refrigerant leak, restriction, or weak compressor). These issues require a qualified refrigeration technician with proper equipment.