Believe me or not but your are luckier owner of chime as your device still make at least some sound.
There are many of us now whose Chime (the original version) stopped working in few last weeks.
It simply disconnected from wifi network and and it is not possible to reset it in any way. It’s essentially bricked and we can throw it away (if it is out of warranty).
Wishing you to not to join this growing group ever.
For more info check thread “Chime not working”.
EDIT: Today I spent an hour on a call with support and eventually they promissed to send me new Chime device. It can be lehghty but it is worth to call Support.