Dehumidifier shows EC and stops dehumidifying

Safety: Unplug the unit. Do not attempt to cut or open refrigerant lines; this requires certified service.

Steps:

• Check ambient and airflow: Ensure the unit is used within the specified temperature range and that filters and coils are clean. Poor airflow can mimic low refrigerant symptoms.
• Observe coil behavior: With covers removed, run the unit and observe the evaporator coil. If only a small section frosts or cools while the rest stays warm, this often indicates low refrigerant or a restriction.
• Sensor verification: Confirm the evaporator NTC sensor is properly attached and reading correctly (see E2). A bad sensor can falsely trigger EC.
• Professional service: If airflow and sensors are fine and EC persists, the sealed system likely has a leak or charge issue. Contact a professional refrigeration technician; they can leak-test, repair, evacuate, and recharge the system. In many compact dehumidifiers, sealed system repair may not be cost-effective compared to replacement.