Baby Brezza formula pro advanced

It's working. It's listed as "Good" because it's making a beep like the water is getting warm like every 15 min or so, sometimes it doesn't make that sound. This is not changing how the machine makes the bottles. My husband just don't want the beep anymore so I'm getting a new one. I ALWAYS USED DISTILLED WATER SO IT'S VERY CLEAN INSIDE. NO SMOKE/PETS HOME. Missing the black part of the tray.