E4 error on display; unit may stop mid-cycle, sometimes accompanied by abnormal frost build-up or very short cycles.

Safety first: Unplug the ice maker and allow it to cool before touching internal metal parts.

• 1. Allow full defrost: Leave the unit unplugged with the lid open for at least 4–6 hours to melt any hidden ice around sensors.
• 2. Clean condenser and fan: Access the rear or bottom panel to locate the condenser coil and fan. Use a soft brush and vacuum to remove dust and lint that can cause overheating.
• 3. Check ventilation: Ensure at least 10–15 cm clearance around the ice maker and that it is not placed in a confined cabinet. Overheating can trigger E4.
• 4. Inspect thermal sensor/fuse: Locate the small thermal sensor or fuse clipped to the evaporator or compressor line. Check for loose mounting or damaged insulation. Reseat connectors on the control board.
• 5. Restart and monitor: Plug in and run a cycle. If E4 returns quickly, the thermal sensor or control board may be defective and require replacement.

Warning: Do not bypass thermal fuses or safety sensors; they protect against overheating and fire risk.