You'll have to hunt down the doorbell to really resolve the issue. Since it really doesn't require servicing, it's probably hidden behind a panel. On my coach, they hid it behind the control panel for the slides and other switches.
I'm guessing if you asked this on the Monaco Owner's Forum on here, you would have a better shot getting the answer.
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Don & Mary
2019 Newmar Dutch Star 4018 (Freightliner)
2019 Ford Raptor
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