DeLonghi 50 Pint dehumidifier DE 500P won...

If it is not responding when you try to activate the shutoff button and are still not recieving an acknowledgement that the bucket is full you may hav a defective shutoff button. Try contacting the Manufacturer and see if you can purchase just the button. This i a common part and the price is usually reasonable. If you feel very technical inclined you can remove the button and touch the 2 wires together simulating a closed contact. The dehumidifier should now acknowledge the bucket is full. If you recieve the notification then the button is bad. If you found this solution helpful please rate it.

Thanks - Tech101

I have the same problem and determined it is a clogged filter. You need to take the cover off to replace it. I have logged onto the delonghi website but didn't see the fileter. I will most likely just put anyold filter on it.