At first I didn't think the button was disabled until I realized it was user error haha. I'm new to central vacuums and just bought a house with it. I tried inserting an extension into the button end of the tubing on the wrong side. I saw metal stains on one side and thought that's where the button worked. But it's actually right up against those metal protrusions under the plastic trigger. Yes! Everything is fine now, works well, easy to hook in and easy to unclip. I'm happy.