@Kevin_H
Verify that you are not lightly brushing the button with your hand (or other) when closing the door. I have found that the mounting position of the doorlock/bell is where my natural tendency to grab the door and pull it closed. I'm accidently hitting the doorbell on the lock almost every time. Planning to try to reprogam my old bad habits and grab the door differently when closing the door behind me.
My issue right now with the DL110 is that it has stopped delivering notifications, when notification for it are all turned on.
Hope that helps!
(added note.... The doorbell does not require a lot of pressure to activate. It can be a very light touch or such that will activate the doorbell.)