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

Safety: Unplug the unit before removing panels. Do not attempt to open or recharge the sealed refrigerant system yourself.

Steps to troubleshoot EC:

• Clean air filter and coils: Remove and wash the air filter. With panels removed, gently vacuum dust from the condenser coil (warm coil near compressor) and evaporator coil (cold coil near intake).
• Check airflow: Ensure nothing blocks intake or exhaust. Poor airflow can mimic a cooling fault.
• Observe coil behavior: After reassembly, plug in and run the unit for 10–15 minutes. If EC appears and the evaporator coil never gets uniformly cold or only a small section frosts, there may be a refrigerant issue.
• Sensor check: Verify the evaporator temperature sensor is properly attached and wired (see E2). Replace if faulty.
• Compressor check: Listen for the compressor starting (a low humming sound) and feel for vibration. If the compressor never starts or cycles rapidly, the start relay or compressor may be defective.
• Professional service: If cleaning and sensor checks do not resolve EC, the unit likely has a sealed system problem (leak, restriction, or compressor failure). Contact a qualified refrigeration technician or Pro Breeze support; sealed system repairs are not DIY-friendly.