Unit displays E4 and stops; fan may not run or runs intermittently.

Safety first: Unplug the ice maker. Keep fingers clear of fan blades at all times.

Steps to resolve E4:

• Access the fan: Remove the rear panel to expose the condenser coil and fan assembly.
• Check for obstructions: Spin the fan blade by hand. Remove dust, plastic wrap, or debris that may be blocking movement.
• Inspect wiring: Verify the fan motor connector is firmly attached and wires are not cut or burned.
• Test the fan motor: With power disconnected, measure resistance across the fan motor terminals. An open circuit indicates a failed motor. If you are qualified, you can briefly power the fan with a suitable test voltage to confirm operation.
• Replace if defective: If the fan does not run freely or tests bad, replace with a compatible Tristar condenser fan motor assembly. Transfer the fan blade if needed.
• Clean condenser: While accessible, gently brush or vacuum the condenser coil to improve airflow.
• Reassemble and test: Reinstall the rear panel, plug in the unit, and verify the fan starts when the compressor runs and that E4 no longer appears.