Dehumidifier displays EC and stops cooling; fan may still run.

Safety: Unplug the unit. Do not attempt to open or recharge the sealed refrigeration system yourself; this requires certified equipment and training.

Steps:

• Visual inspection: Remove covers and inspect the evaporator and condenser coils for oil stains, corrosion, or physical damage, which can indicate leaks.
• Check coil temperature: Run the unit briefly (covers reinstalled) and feel the evaporator and condenser surfaces. If both remain near room temperature and EC appears, refrigerant may be low.
• Clean coils and filter: Ensure airflow is not restricted; sometimes EC can be triggered by abnormal temperature readings due to poor airflow.
• Professional service: If EC persists, contact an authorized Trotec service center. A technician will perform leak detection, repair any leaks, evacuate, and recharge the system to the correct specification.