For the Finether dehumidifier operating instructions to work effectively, placement is key:
: An ER9 code typically indicates a kinked or blocked drainage hose. How to Set Your Dehumidifier | Sylvane
7 Essential Practices for Maximizing Your Dehumidifier's Efficiency
Before using your Finether Dehumidifier, make sure you've read and understood the following safety precautions:
Note: If your model has a compressor (larger, heavier), refer to the “Pro” tips at the end.
Ignore the “silent operation” claim if you put it on a hard surface – place it on a soft cloth or rubber mat to kill vibration noise. The instructions don’t mention that, but it makes a huge difference.
Remove all packaging. Check for cracks in the plastic casing or loose parts.