Dehumidifier displays EC and stops dehumidifying

Safety: Unplug the unit. Do not attempt to open or recharge the sealed refrigeration system yourself.

Steps:

• Basic reset: Unplug for 10 minutes, then plug back in. If EC returns quickly, continue.
• Check environment: Ensure room temperature is within the operating range (typically 41–95°F / 5–35°C). Extremely low or high temperatures can trigger EC on some models.
• Clean filter and coils: Clean the air filter and vacuum dust from the intake and exhaust. Poor airflow can cause abnormal coil temperatures.
• Inspect for icing or no cooling: With the bucket removed and grille off, run the unit briefly and feel the evaporator coil. If it never gets cool or only a small section cools, the sealed system may be low on refrigerant or restricted.
• Sensor check: Inspect the evaporator thermistor for secure mounting and intact wiring. Replace if visibly damaged.

Important: EC often indicates a sealed system problem. Only an EPA-certified technician should check for leaks, repair the sealed system, and recharge refrigerant. In many small dehumidifiers, sealed system repair may not be cost-effective compared to replacement.