Dehumidifier displays LO and does not start dehumidifying

Safety: No internal work is needed for basic checks.

Steps:

• 1. Verify room humidity: Use a separate hygrometer to check actual humidity. If it is already low (e.g., below 35–40%), the unit may correctly show LO and not run.
• 2. Adjust setpoint: Increase the target humidity (e.g., set to 50–55%) and see if the compressor starts.
• 3. Check room temperature: If the room is very cold, move the unit to a warmer area.
• 4. If LO appears despite high humidity: The humidity sensor may be misreading. Inspect and, if necessary, replace the humidity sensor module as described in the E3 fault procedure.