The dirty water tank is not full but the device prompts a full water alarm? Customer Support August 17, 2021 09:01 Reinstall the sewage tank to ensure that it is installed properly. Clean the HEPA filter, ensure the HEPA filter is dry. Related articles Lunaglow G1 user manual No response after pressing the self-cleaning button? The water spray button is not spraying water? Clean water tank indicator showing "not allowed", "lack of water" or flashes randomly? Is self-cleaning mode always showing lack of water? Can I clean both wet and dry waste? What floors are suitable?