Dyson humidifier dehumidifier mode (for combo models) does not remove moisture, water tank remains empty

Safety first: Unplug the unit before inspection. Dehumidifier sections can contain high-voltage components.

• 1. Verify mode: Ensure the unit is actually in dehumidifier mode and not just fan or humidifier mode.
• 2. Check air filters: If your combo unit has an air filter, remove and clean or replace it to restore airflow.
• 3. Inspect coils (if visible): Look for frost or heavy dust on the evaporator coil. Do not bend fins. Clean gently with a soft brush if accessible.
• 4. Check drain path: Ensure the condensate drain into the tank is not blocked by debris.
• 5. Professional service: If the compressor or Peltier module is not running or the unit makes unusual noises, internal refrigeration components may have failed and require professional repair.