Dehumidifier runs but does not collect water, humidity does not decrease

Safety: Unplug before cleaning internal components.

Steps:

• Check room conditions: Dehumidifiers work poorly below about 10–15°C. Move to a warmer room if necessary.
• Clean filter and coils: Wash the air filter and gently clean dust from evaporator and condenser fins with a soft brush.
• Verify compressor operation: After 10–15 minutes of running, the condenser coil should feel warm and the evaporator cool. If both are at room temperature, the refrigeration system may not be working.
• Check for frost: Light, even frost on the evaporator is normal; heavy ice or no cooling at all suggests a problem.
• Professional service: If coils are clean and compressor runs but no water is collected, a refrigerant leak or internal restriction is likely. This requires a certified technician.