Dehumidifier runs but does not collect water; humidity in the room remains high.

Safety: Unplug the unit before cleaning or opening panels.

Steps:

• Clean air filter: Remove and wash the filter with mild detergent. Dry completely before reinstalling.
• Clean coils: Access the evaporator and condenser and gently vacuum or brush off dust from the fins.
• Check operating conditions: Ensure doors and windows are closed and the room size is within the unit's rated capacity.
• Observe coil behavior: After running for 15–20 minutes, the evaporator should be cool and may have light condensation, while the condenser should be warm. If both are near room temperature, the compressor or refrigerant charge may be faulty.
• Professional service: If cleaning and proper use do not restore performance, contact a refrigeration technician to check compressor operation and refrigerant level.