E4 error on display; compressor may not start or shuts down quickly; unit may feel warm inside.

Safety first: Unplug the ice maker. Do not bypass safety devices.

Improve cooling and airflow:

• Move the AGLUCKY unit to a well-ventilated area with at least 6 inches (15 cm) clearance on all sides and above.
• Use a soft brush or vacuum to clean dust and lint from the condenser coil (metal radiator-like fins) and the surrounding area.

Check the condenser fan:

• With the cover removed, gently spin the condenser fan blade by hand. It should move freely without rubbing.
• Plug in briefly and power on while keeping fingers clear. Confirm the fan starts when the compressor attempts to run. If it does not, the fan motor may be defective.

Inspect compressor start components:

• Unplug again. Locate the compressor and its start relay/overload (usually a small plastic module clipped to the compressor terminals).
• Check for burnt smell, discoloration, or rattling pieces inside the relay when gently shaken—these indicate failure.

Next steps:

• Replace a failed condenser fan motor or compressor start relay/overload with compatible AGLUCKY parts.
• If the compressor is extremely hot to the touch and E4 recurs after cleaning and part replacement, the compressor itself may be failing and requires professional service.