De'Longhi dehumidifier causes the household circuit breaker or RCD to trip when it starts.

Safety first: Do not repeatedly reset a tripping breaker. Unplug the unit immediately. Risk of electric shock or fire.

Step-by-step:

• 1. Inspect cord and plug: Look for damage, burns, or melted areas. Replace the cord set if any damage is found.
• 2. Check for moisture: If the unit has been exposed to flooding or heavy condensation, allow it to dry in a warm, dry place for 24–48 hours before retrying.
• 3. Try a different outlet: Plug into another properly grounded outlet on a different circuit to rule out wiring issues in the home.
• 4. Internal inspection: If comfortable, remove the cover and look for obvious signs of arcing, burnt components, or water inside. Do not power the unit with covers removed.
• 5. Professional diagnosis: Persistent tripping indicates a serious electrical fault (compressor, fan motor, or PCB) and must be addressed by a qualified technician.