Dehumidifier displays H1 and will not start or stops shortly after starting

Safety: Unplug the unit and allow it to cool before working near the compressor or coils.

Steps:

• 1. Improve ventilation: Move the unit away from walls and heat sources. Ensure at least 20–30 cm clearance around all sides.
• 2. Clean filter and coils: Wash the air filter and let it dry. Use a brush or vacuum to clean dust from the condenser and evaporator coils.
• 3. Check fan operation: Power the unit and observe whether the fan runs at normal speed. If the fan is slow or not running, refer to fan motor diagnostics and replace if necessary.
• 4. Inspect compressor thermal sensor: With power off, locate the thermal sensor or thermal fuse on the compressor shell or discharge line. Check for loose mounting or damaged wires.
• 5. Replace faulty thermal device: If the thermal fuse or sensor is open (no continuity) at room temperature, replace it with the correct Beko part.
• 6. If H1 recurs despite good airflow and new sensor: The compressor may be overheating internally or the PCB may be misreading temperatures. Professional diagnosis is recommended.