Hello sstanford. Thank you for your message. Can we ask you what level you are running your Albert on? If you run it at a certain humidity level (e.g. 60%), it may be that the desired humidity level has been reached and the dehumidifier therefore stops working. It measures at intervals and when the humidity rises above the desired level again, it starts dehumidifying again. How does it behave if you leave it in continuous mode (CON)? You are also welcome to contact us directly by email at service@stadlerform.com or by phone on 041 720 48 48 so that we can look at this together. Best regards, your Stadler Form Team