Sunbeam
No Dehumidification / Poor Cooling Performance
Dehumidifier runs but does not collect water (room remains humid)
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Safety Warning
This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.
If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.
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Possible Causes
Low refrigerant charge, Dirty evaporator or condenser coils, Failed compressor, Faulty evaporator temperature sensor causing premature shutdown
How to Fix / Troubleshooting
Safety: Unplug before cleaning or opening panels.
Steps:
- Check environment: Ensure doors and windows are closed and the room size is within the unit's capacity.
- Clean filter and coils: Wash the air filter. Vacuum dust from the evaporator (front) and condenser (rear) coils with a soft brush.
- Observe coil behavior: After running for 15–20 minutes, check the evaporator coil. It should be cool and may have light, even condensation. Heavy ice buildup or completely dry, warm coils indicate a problem.
- Listen to compressor: Confirm the compressor is running (a deeper humming sound). If only the fan runs, see compressor-related entries.
- Sensor check: Test the evaporator temperature sensor as described under E2. Replace if faulty.
- Professional diagnosis: If coils are clean, compressor runs, but no water is collected, the sealed system may be undercharged or restricted. Contact a refrigeration technician.
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Repair Difficulty
Hard
4/5
Required Part
Evaporator Coil
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